Finding the Third Proportional to 426,558 and 987,498

Step by Step Solution

1. Step 1: Write the proportion equation
   426,558 : 987,498 = 987,498 : x
2. Step 2: Convert to fraction form
   426,558/987,498 = 987,498/x
3. Step 3: Cross multiply
   426,558x = 987,498 × 987,498
4. Step 4: Simplify right side
   426,558x = 975,152,300,004
5. Step 5: Solve for x
   x = 975,152,300,004/426,558
6. Step 6: Final answer
   x = 2,286,095.44