Finding the Third Proportional to 132,662 and 286,502.50

Step by Step Solution

1. Step 1: Write the proportion equation
   132,662 : 286,502.50 = 286,502.50 : x
2. Step 2: Convert to fraction form
   132,662/286,502.50 = 286,502.50/x
3. Step 3: Cross multiply
   132,662x = 286,502.50 × 286,502.50
4. Step 4: Simplify right side
   132,662x = 82,083,682,506.25
5. Step 5: Solve for x
   x = 82,083,682,506.25/132,662
6. Step 6: Final answer
   x = 618,742.99