Finding the Third Proportional to 238,147.31 and 513,685.69

Step by Step Solution

1. Step 1: Write the proportion equation
   238,147.31 : 513,685.69 = 513,685.69 : x
2. Step 2: Convert to fraction form
   238,147.31/513,685.69 = 513,685.69/x
3. Step 3: Cross multiply
   238,147.31x = 513,685.69 × 513,685.69
4. Step 4: Simplify right side
   238,147.31x = 263,872,985,542.35
5. Step 5: Solve for x
   x = 263,872,985,542.35/238,147.31
6. Step 6: Final answer
   x = 1,108,024.20