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Finding the Third Proportional to 436,978 and 590,390

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Solution

The third proportional to 436,978 and 590,390 is: 797,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,978 : 590,390 = 590,390 : x
  2. Step 2: Convert to fraction form
    436,978/590,390 = 590,390/x
  3. Step 3: Cross multiply
    436,978x = 590,390 × 590,390
  4. Step 4: Simplify right side
    436,978x = 348,560,352,100
  5. Step 5: Solve for x
    x = 348,560,352,100/436,978
  6. Step 6: Final answer
    x = 797,661.10

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