Finding the Third Proportional to 916,400 and 1,974,726

Step by Step Solution

1. Step 1: Write the proportion equation
   916,400 : 1,974,726 = 1,974,726 : x
2. Step 2: Convert to fraction form
   916,400/1,974,726 = 1,974,726/x
3. Step 3: Cross multiply
   916,400x = 1,974,726 × 1,974,726
4. Step 4: Simplify right side
   916,400x = 3,899,542,775,076
5. Step 5: Solve for x
   x = 3,899,542,775,076/916,400
6. Step 6: Final answer
   x = 4,255,284.56