Finding the Third Proportional to 262,488 and 573,090

Step by Step Solution

1. Step 1: Write the proportion equation
   262,488 : 573,090 = 573,090 : x
2. Step 2: Convert to fraction form
   262,488/573,090 = 573,090/x
3. Step 3: Cross multiply
   262,488x = 573,090 × 573,090
4. Step 4: Simplify right side
   262,488x = 328,432,148,100
5. Step 5: Solve for x
   x = 328,432,148,100/262,488
6. Step 6: Final answer
   x = 1,251,227.29