Finding the Third Proportional to 63,862,642.50 and 139,815,562.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,862,642.50 : 139,815,562.50 = 139,815,562.50 : x
2. Step 2: Convert to fraction form
   63,862,642.50/139,815,562.50 = 139,815,562.50/x
3. Step 3: Cross multiply
   63,862,642.50x = 139,815,562.50 × 139,815,562.50
4. Step 4: Simplify right side
   63,862,642.50x = 19,548,391,517,191,408
5. Step 5: Solve for x
   x = 19,548,391,517,191,408/63,862,642.50
6. Step 6: Final answer
   x = 306,100,573.86