Finding the Third Proportional to 542,315 and 1,181,140

Step by Step Solution

1. Step 1: Write the proportion equation
   542,315 : 1,181,140 = 1,181,140 : x
2. Step 2: Convert to fraction form
   542,315/1,181,140 = 1,181,140/x
3. Step 3: Cross multiply
   542,315x = 1,181,140 × 1,181,140
4. Step 4: Simplify right side
   542,315x = 1,395,091,699,600
5. Step 5: Solve for x
   x = 1,395,091,699,600/542,315
6. Step 6: Final answer
   x = 2,572,474.85