Finding the Third Proportional to 243,870 and 532,428

Step by Step Solution

1. Step 1: Write the proportion equation
   243,870 : 532,428 = 532,428 : x
2. Step 2: Convert to fraction form
   243,870/532,428 = 532,428/x
3. Step 3: Cross multiply
   243,870x = 532,428 × 532,428
4. Step 4: Simplify right side
   243,870x = 283,479,575,184
5. Step 5: Solve for x
   x = 283,479,575,184/243,870
6. Step 6: Final answer
   x = 1,162,420.86