Finding the Third Proportional to 132,385.50 and 291,492

Step by Step Solution

1. Step 1: Write the proportion equation
   132,385.50 : 291,492 = 291,492 : x
2. Step 2: Convert to fraction form
   132,385.50/291,492 = 291,492/x
3. Step 3: Cross multiply
   132,385.50x = 291,492 × 291,492
4. Step 4: Simplify right side
   132,385.50x = 84,967,586,064
5. Step 5: Solve for x
   x = 84,967,586,064/132,385.50
6. Step 6: Final answer
   x = 641,819.43