Finding the Third Proportional to 891,978 and 1,271,530

Step by Step Solution

1. Step 1: Write the proportion equation
   891,978 : 1,271,530 = 1,271,530 : x
2. Step 2: Convert to fraction form
   891,978/1,271,530 = 1,271,530/x
3. Step 3: Cross multiply
   891,978x = 1,271,530 × 1,271,530
4. Step 4: Simplify right side
   891,978x = 1,616,788,540,900
5. Step 5: Solve for x
   x = 1,616,788,540,900/891,978
6. Step 6: Final answer
   x = 1,812,587.91