Finding the Third Proportional to 524,139 and 1,146,420

Step by Step Solution

1. Step 1: Write the proportion equation
   524,139 : 1,146,420 = 1,146,420 : x
2. Step 2: Convert to fraction form
   524,139/1,146,420 = 1,146,420/x
3. Step 3: Cross multiply
   524,139x = 1,146,420 × 1,146,420
4. Step 4: Simplify right side
   524,139x = 1,314,278,816,400
5. Step 5: Solve for x
   x = 1,314,278,816,400/524,139
6. Step 6: Final answer
   x = 2,507,500.52