Finding the Third Proportional to 83,444.50 and 129,126

Step by Step Solution

1. Step 1: Write the proportion equation
   83,444.50 : 129,126 = 129,126 : x
2. Step 2: Convert to fraction form
   83,444.50/129,126 = 129,126/x
3. Step 3: Cross multiply
   83,444.50x = 129,126 × 129,126
4. Step 4: Simplify right side
   83,444.50x = 16,673,523,876
5. Step 5: Solve for x
   x = 16,673,523,876/83,444.50
6. Step 6: Final answer
   x = 199,815.73