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Finding the Third Proportional to 190,637,400 and 285,699,978

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Solution

The third proportional to 190,637,400 and 285,699,978 is: 428,166,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,637,400 : 285,699,978 = 285,699,978 : x
  2. Step 2: Convert to fraction form
    190,637,400/285,699,978 = 285,699,978/x
  3. Step 3: Cross multiply
    190,637,400x = 285,699,978 × 285,699,978
  4. Step 4: Simplify right side
    190,637,400x = 81,624,477,429,200,480
  5. Step 5: Solve for x
    x = 81,624,477,429,200,480/190,637,400
  6. Step 6: Final answer
    x = 428,166,128.10

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