Finding the Third Proportional to 641,521 and 998,002.50

Step by Step Solution

1. Step 1: Write the proportion equation
   641,521 : 998,002.50 = 998,002.50 : x
2. Step 2: Convert to fraction form
   641,521/998,002.50 = 998,002.50/x
3. Step 3: Cross multiply
   641,521x = 998,002.50 × 998,002.50
4. Step 4: Simplify right side
   641,521x = 996,008,990,006.25
5. Step 5: Solve for x
   x = 996,008,990,006.25/641,521
6. Step 6: Final answer
   x = 1,552,574.26