Finding the Third Proportional to 88,552,196.50 and 138,899,680

Step by Step Solution

1. Step 1: Write the proportion equation
   88,552,196.50 : 138,899,680 = 138,899,680 : x
2. Step 2: Convert to fraction form
   88,552,196.50/138,899,680 = 138,899,680/x
3. Step 3: Cross multiply
   88,552,196.50x = 138,899,680 × 138,899,680
4. Step 4: Simplify right side
   88,552,196.50x = 19,293,121,104,102,400
5. Step 5: Solve for x
   x = 19,293,121,104,102,400/88,552,196.50
6. Step 6: Final answer
   x = 217,872,868.96