Finding the Third Proportional to 507,127.50 and 725,145

Step by Step Solution

1. Step 1: Write the proportion equation
   507,127.50 : 725,145 = 725,145 : x
2. Step 2: Convert to fraction form
   507,127.50/725,145 = 725,145/x
3. Step 3: Cross multiply
   507,127.50x = 725,145 × 725,145
4. Step 4: Simplify right side
   507,127.50x = 525,835,271,025
5. Step 5: Solve for x
   x = 525,835,271,025/507,127.50
6. Step 6: Final answer
   x = 1,036,889.68