Finding the Third Proportional to 132,469.50 and 286,066.50

Step by Step Solution

1. Step 1: Write the proportion equation
   132,469.50 : 286,066.50 = 286,066.50 : x
2. Step 2: Convert to fraction form
   132,469.50/286,066.50 = 286,066.50/x
3. Step 3: Cross multiply
   132,469.50x = 286,066.50 × 286,066.50
4. Step 4: Simplify right side
   132,469.50x = 81,834,042,422.25
5. Step 5: Solve for x
   x = 81,834,042,422.25/132,469.50
6. Step 6: Final answer
   x = 617,757.62