Finding the Third Proportional to 62,510,971.50 and 69,984,355.50

Step by Step Solution

1. Step 1: Write the proportion equation
   62,510,971.50 : 69,984,355.50 = 69,984,355.50 : x
2. Step 2: Convert to fraction form
   62,510,971.50/69,984,355.50 = 69,984,355.50/x
3. Step 3: Cross multiply
   62,510,971.50x = 69,984,355.50 × 69,984,355.50
4. Step 4: Simplify right side
   62,510,971.50x = 4,897,810,014,750,380
5. Step 5: Solve for x
   x = 4,897,810,014,750,380/62,510,971.50
6. Step 6: Final answer
   x = 78,351,206.15