Finding the Third Proportional to 116,815.50 and 245,295

Step by Step Solution

1. Step 1: Write the proportion equation
   116,815.50 : 245,295 = 245,295 : x
2. Step 2: Convert to fraction form
   116,815.50/245,295 = 245,295/x
3. Step 3: Cross multiply
   116,815.50x = 245,295 × 245,295
4. Step 4: Simplify right side
   116,815.50x = 60,169,637,025
5. Step 5: Solve for x
   x = 60,169,637,025/116,815.50
6. Step 6: Final answer
   x = 515,082.65