Finding the Third Proportional to 623,874 and 931,650

Step by Step Solution

1. Step 1: Write the proportion equation
   623,874 : 931,650 = 931,650 : x
2. Step 2: Convert to fraction form
   623,874/931,650 = 931,650/x
3. Step 3: Cross multiply
   623,874x = 931,650 × 931,650
4. Step 4: Simplify right side
   623,874x = 867,971,722,500
5. Step 5: Solve for x
   x = 867,971,722,500/623,874
6. Step 6: Final answer
   x = 1,391,261.25