Finding the Third Proportional to 240,688.50 and 515,535

Step by Step Solution

1. Step 1: Write the proportion equation
   240,688.50 : 515,535 = 515,535 : x
2. Step 2: Convert to fraction form
   240,688.50/515,535 = 515,535/x
3. Step 3: Cross multiply
   240,688.50x = 515,535 × 515,535
4. Step 4: Simplify right side
   240,688.50x = 265,776,336,225
5. Step 5: Solve for x
   x = 265,776,336,225/240,688.50
6. Step 6: Final answer
   x = 1,104,233.63