Finding the Third Proportional to 3,947,597 and 8,608,641.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947,597 : 8,608,641.50 = 8,608,641.50 : x
2. Step 2: Convert to fraction form
   3,947,597/8,608,641.50 = 8,608,641.50/x
3. Step 3: Cross multiply
   3,947,597x = 8,608,641.50 × 8,608,641.50
4. Step 4: Simplify right side
   3,947,597x = 74,108,708,475,522.25
5. Step 5: Solve for x
   x = 74,108,708,475,522.25/3,947,597
6. Step 6: Final answer
   x = 18,773,119.06