Finding the Third Proportional to 542,912 and 1,182,208

Step by Step Solution

1. Step 1: Write the proportion equation
   542,912 : 1,182,208 = 1,182,208 : x
2. Step 2: Convert to fraction form
   542,912/1,182,208 = 1,182,208/x
3. Step 3: Cross multiply
   542,912x = 1,182,208 × 1,182,208
4. Step 4: Simplify right side
   542,912x = 1,397,615,755,264
5. Step 5: Solve for x
   x = 1,397,615,755,264/542,912
6. Step 6: Final answer
   x = 2,574,295.20