Finding the Third Proportional to 262,143 and 573,346.50

Step by Step Solution

1. Step 1: Write the proportion equation
   262,143 : 573,346.50 = 573,346.50 : x
2. Step 2: Convert to fraction form
   262,143/573,346.50 = 573,346.50/x
3. Step 3: Cross multiply
   262,143x = 573,346.50 × 573,346.50
4. Step 4: Simplify right side
   262,143x = 328,726,209,062.25
5. Step 5: Solve for x
   x = 328,726,209,062.25/262,143
6. Step 6: Final answer
   x = 1,253,995.75