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Finding the Third Proportional to 176,978 and 388,948

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Solution

The third proportional to 176,978 and 388,948 is: 854,798.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,978 : 388,948 = 388,948 : x
  2. Step 2: Convert to fraction form
    176,978/388,948 = 388,948/x
  3. Step 3: Cross multiply
    176,978x = 388,948 × 388,948
  4. Step 4: Simplify right side
    176,978x = 151,280,546,704
  5. Step 5: Solve for x
    x = 151,280,546,704/176,978
  6. Step 6: Final answer
    x = 854,798.60

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