Finding the Third Proportional to 869,912 and 1,271,300

Step by Step Solution

1. Step 1: Write the proportion equation
   869,912 : 1,271,300 = 1,271,300 : x
2. Step 2: Convert to fraction form
   869,912/1,271,300 = 1,271,300/x
3. Step 3: Cross multiply
   869,912x = 1,271,300 × 1,271,300
4. Step 4: Simplify right side
   869,912x = 1,616,203,690,000
5. Step 5: Solve for x
   x = 1,616,203,690,000/869,912
6. Step 6: Final answer
   x = 1,857,893.32