Finding the Third Proportional to 262,521.50 and 572,557.50

Step by Step Solution

1. Step 1: Write the proportion equation
   262,521.50 : 572,557.50 = 572,557.50 : x
2. Step 2: Convert to fraction form
   262,521.50/572,557.50 = 572,557.50/x
3. Step 3: Cross multiply
   262,521.50x = 572,557.50 × 572,557.50
4. Step 4: Simplify right side
   262,521.50x = 327,822,090,806.25
5. Step 5: Solve for x
   x = 327,822,090,806.25/262,521.50
6. Step 6: Final answer
   x = 1,248,743.78