Finding the Third Proportional to 132,616.50 and 286,410

Step by Step Solution

1. Step 1: Write the proportion equation
   132,616.50 : 286,410 = 286,410 : x
2. Step 2: Convert to fraction form
   132,616.50/286,410 = 286,410/x
3. Step 3: Cross multiply
   132,616.50x = 286,410 × 286,410
4. Step 4: Simplify right side
   132,616.50x = 82,030,688,100
5. Step 5: Solve for x
   x = 82,030,688,100/132,616.50
6. Step 6: Final answer
   x = 618,555.67