Finding the Third Proportional to 83,061,121.50 and 128,945,034

Step by Step Solution

1. Step 1: Write the proportion equation
   83,061,121.50 : 128,945,034 = 128,945,034 : x
2. Step 2: Convert to fraction form
   83,061,121.50/128,945,034 = 128,945,034/x
3. Step 3: Cross multiply
   83,061,121.50x = 128,945,034 × 128,945,034
4. Step 4: Simplify right side
   83,061,121.50x = 16,626,821,793,261,156
5. Step 5: Solve for x
   x = 16,626,821,793,261,156/83,061,121.50
6. Step 6: Final answer
   x = 200,175,743.99