Finding the Third Proportional to 3,927,259.69 and 8,641,839.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,927,259.69 : 8,641,839.38 = 8,641,839.38 : x
2. Step 2: Convert to fraction form
   3,927,259.69/8,641,839.38 = 8,641,839.38/x
3. Step 3: Cross multiply
   3,927,259.69x = 8,641,839.38 × 8,641,839.38
4. Step 4: Simplify right side
   3,927,259.69x = 74,681,387,783,300.39
5. Step 5: Solve for x
   x = 74,681,387,783,300.39/3,927,259.69
6. Step 6: Final answer
   x = 19,016,157.25