Finding the Third Proportional to 83,402.50 and 129,093

Step by Step Solution

1. Step 1: Write the proportion equation
   83,402.50 : 129,093 = 129,093 : x
2. Step 2: Convert to fraction form
   83,402.50/129,093 = 129,093/x
3. Step 3: Cross multiply
   83,402.50x = 129,093 × 129,093
4. Step 4: Simplify right side
   83,402.50x = 16,665,002,649
5. Step 5: Solve for x
   x = 16,665,002,649/83,402.50
6. Step 6: Final answer
   x = 199,814.19