Finding the Third Proportional to 458,788.50 and 987,885

Step by Step Solution

1. Step 1: Write the proportion equation
   458,788.50 : 987,885 = 987,885 : x
2. Step 2: Convert to fraction form
   458,788.50/987,885 = 987,885/x
3. Step 3: Cross multiply
   458,788.50x = 987,885 × 987,885
4. Step 4: Simplify right side
   458,788.50x = 975,916,773,225
5. Step 5: Solve for x
   x = 975,916,773,225/458,788.50
6. Step 6: Final answer
   x = 2,127,160.50