Finding the Third Proportional to 426,554 and 987,488

Step by Step Solution

1. Step 1: Write the proportion equation
   426,554 : 987,488 = 987,488 : x
2. Step 2: Convert to fraction form
   426,554/987,488 = 987,488/x
3. Step 3: Cross multiply
   426,554x = 987,488 × 987,488
4. Step 4: Simplify right side
   426,554x = 975,132,550,144
5. Step 5: Solve for x
   x = 975,132,550,144/426,554
6. Step 6: Final answer
   x = 2,286,070.58