Finding the Third Proportional to 630,695.25 and 991,242

Step by Step Solution

1. Step 1: Write the proportion equation
   630,695.25 : 991,242 = 991,242 : x
2. Step 2: Convert to fraction form
   630,695.25/991,242 = 991,242/x
3. Step 3: Cross multiply
   630,695.25x = 991,242 × 991,242
4. Step 4: Simplify right side
   630,695.25x = 982,560,702,564
5. Step 5: Solve for x
   x = 982,560,702,564/630,695.25
6. Step 6: Final answer
   x = 1,557,900.91