Finding the Third Proportional to 72,677,968.50 and 109,070,107.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,677,968.50 : 109,070,107.50 = 109,070,107.50 : x
2. Step 2: Convert to fraction form
   72,677,968.50/109,070,107.50 = 109,070,107.50/x
3. Step 3: Cross multiply
   72,677,968.50x = 109,070,107.50 × 109,070,107.50
4. Step 4: Simplify right side
   72,677,968.50x = 11,896,288,350,061,556
5. Step 5: Solve for x
   x = 11,896,288,350,061,556/72,677,968.50
6. Step 6: Final answer
   x = 163,684,932.25