Finding the Third Proportional to 231,158 and 506,380

Step by Step Solution

1. Step 1: Write the proportion equation
   231,158 : 506,380 = 506,380 : x
2. Step 2: Convert to fraction form
   231,158/506,380 = 506,380/x
3. Step 3: Cross multiply
   231,158x = 506,380 × 506,380
4. Step 4: Simplify right side
   231,158x = 256,420,704,400
5. Step 5: Solve for x
   x = 256,420,704,400/231,158
6. Step 6: Final answer
   x = 1,109,287.61