Finding the Third Proportional to 91,500.19 and 136,711.69

Step by Step Solution

1. Step 1: Write the proportion equation
   91,500.19 : 136,711.69 = 136,711.69 : x
2. Step 2: Convert to fraction form
   91,500.19/136,711.69 = 136,711.69/x
3. Step 3: Cross multiply
   91,500.19x = 136,711.69 × 136,711.69
4. Step 4: Simplify right side
   91,500.19x = 18,690,085,499.10
5. Step 5: Solve for x
   x = 18,690,085,499.10/91,500.19
6. Step 6: Final answer
   x = 204,262.81