Finding the Third Proportional to 542,690 and 1,181,800

Step by Step Solution

1. Step 1: Write the proportion equation
   542,690 : 1,181,800 = 1,181,800 : x
2. Step 2: Convert to fraction form
   542,690/1,181,800 = 1,181,800/x
3. Step 3: Cross multiply
   542,690x = 1,181,800 × 1,181,800
4. Step 4: Simplify right side
   542,690x = 1,396,651,240,000
5. Step 5: Solve for x
   x = 1,396,651,240,000/542,690
6. Step 6: Final answer
   x = 2,573,570.99