Finding the Third Proportional to 916,404 and 1,974,738

Step by Step Solution

1. Step 1: Write the proportion equation
   916,404 : 1,974,738 = 1,974,738 : x
2. Step 2: Convert to fraction form
   916,404/1,974,738 = 1,974,738/x
3. Step 3: Cross multiply
   916,404x = 1,974,738 × 1,974,738
4. Step 4: Simplify right side
   916,404x = 3,899,590,168,644
5. Step 5: Solve for x
   x = 3,899,590,168,644/916,404
6. Step 6: Final answer
   x = 4,255,317.71