Finding the Third Proportional to 915,400 and 1,993,538

Step by Step Solution

1. Step 1: Write the proportion equation
   915,400 : 1,993,538 = 1,993,538 : x
2. Step 2: Convert to fraction form
   915,400/1,993,538 = 1,993,538/x
3. Step 3: Cross multiply
   915,400x = 1,993,538 × 1,993,538
4. Step 4: Simplify right side
   915,400x = 3,974,193,757,444
5. Step 5: Solve for x
   x = 3,974,193,757,444/915,400
6. Step 6: Final answer
   x = 4,341,483.24