Finding the Third Proportional to 112,816.50 and 240,645

Step by Step Solution

1. Step 1: Write the proportion equation
   112,816.50 : 240,645 = 240,645 : x
2. Step 2: Convert to fraction form
   112,816.50/240,645 = 240,645/x
3. Step 3: Cross multiply
   112,816.50x = 240,645 × 240,645
4. Step 4: Simplify right side
   112,816.50x = 57,910,016,025
5. Step 5: Solve for x
   x = 57,910,016,025/112,816.50
6. Step 6: Final answer
   x = 513,311.58