Finding the Third Proportional to 612,105 and 931,698

Step by Step Solution

1. Step 1: Write the proportion equation
   612,105 : 931,698 = 931,698 : x
2. Step 2: Convert to fraction form
   612,105/931,698 = 931,698/x
3. Step 3: Cross multiply
   612,105x = 931,698 × 931,698
4. Step 4: Simplify right side
   612,105x = 868,061,163,204
5. Step 5: Solve for x
   x = 868,061,163,204/612,105
6. Step 6: Final answer
   x = 1,418,157.28