Finding the Third Proportional to 648,727.50 and 1,031,028

Step by Step Solution

1. Step 1: Write the proportion equation
   648,727.50 : 1,031,028 = 1,031,028 : x
2. Step 2: Convert to fraction form
   648,727.50/1,031,028 = 1,031,028/x
3. Step 3: Cross multiply
   648,727.50x = 1,031,028 × 1,031,028
4. Step 4: Simplify right side
   648,727.50x = 1,063,018,736,784
5. Step 5: Solve for x
   x = 1,063,018,736,784/648,727.50
6. Step 6: Final answer
   x = 1,638,621.36