Finding the Third Proportional to 108,060 and 231,240

Step by Step Solution

1. Step 1: Write the proportion equation
   108,060 : 231,240 = 231,240 : x
2. Step 2: Convert to fraction form
   108,060/231,240 = 231,240/x
3. Step 3: Cross multiply
   108,060x = 231,240 × 231,240
4. Step 4: Simplify right side
   108,060x = 53,471,937,600
5. Step 5: Solve for x
   x = 53,471,937,600/108,060
6. Step 6: Final answer
   x = 494,835.62