Finding the Third Proportional to 789,381 and 1,154,103

Step by Step Solution

1. Step 1: Write the proportion equation
   789,381 : 1,154,103 = 1,154,103 : x
2. Step 2: Convert to fraction form
   789,381/1,154,103 = 1,154,103/x
3. Step 3: Cross multiply
   789,381x = 1,154,103 × 1,154,103
4. Step 4: Simplify right side
   789,381x = 1,331,953,734,609
5. Step 5: Solve for x
   x = 1,331,953,734,609/789,381
6. Step 6: Final answer
   x = 1,687,339.49