Finding the Third Proportional to 661,818 and 931,974

Step by Step Solution

1. Step 1: Write the proportion equation
   661,818 : 931,974 = 931,974 : x
2. Step 2: Convert to fraction form
   661,818/931,974 = 931,974/x
3. Step 3: Cross multiply
   661,818x = 931,974 × 931,974
4. Step 4: Simplify right side
   661,818x = 868,575,536,676
5. Step 5: Solve for x
   x = 868,575,536,676/661,818
6. Step 6: Final answer
   x = 1,312,408.45