Finding the Third Proportional to 801,916.50 and 1,059,990

Step by Step Solution

1. Step 1: Write the proportion equation
   801,916.50 : 1,059,990 = 1,059,990 : x
2. Step 2: Convert to fraction form
   801,916.50/1,059,990 = 1,059,990/x
3. Step 3: Cross multiply
   801,916.50x = 1,059,990 × 1,059,990
4. Step 4: Simplify right side
   801,916.50x = 1,123,578,800,100
5. Step 5: Solve for x
   x = 1,123,578,800,100/801,916.50
6. Step 6: Final answer
   x = 1,401,116.95