Finding the Third Proportional to 71,578,298.25 and 109,447,420.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,578,298.25 : 109,447,420.50 = 109,447,420.50 : x
2. Step 2: Convert to fraction form
   71,578,298.25/109,447,420.50 = 109,447,420.50/x
3. Step 3: Cross multiply
   71,578,298.25x = 109,447,420.50 × 109,447,420.50
4. Step 4: Simplify right side
   71,578,298.25x = 11,978,737,854,103,820
5. Step 5: Solve for x
   x = 11,978,737,854,103,820/71,578,298.25
6. Step 6: Final answer
   x = 167,351,531.78