Finding the Third Proportional to 637,842 and 987,003

Step by Step Solution

1. Step 1: Write the proportion equation
   637,842 : 987,003 = 987,003 : x
2. Step 2: Convert to fraction form
   637,842/987,003 = 987,003/x
3. Step 3: Cross multiply
   637,842x = 987,003 × 987,003
4. Step 4: Simplify right side
   637,842x = 974,174,922,009
5. Step 5: Solve for x
   x = 974,174,922,009/637,842
6. Step 6: Final answer
   x = 1,527,298.17