Finding the Third Proportional to 607,856 and 1,407,078

Step by Step Solution

1. Step 1: Write the proportion equation
   607,856 : 1,407,078 = 1,407,078 : x
2. Step 2: Convert to fraction form
   607,856/1,407,078 = 1,407,078/x
3. Step 3: Cross multiply
   607,856x = 1,407,078 × 1,407,078
4. Step 4: Simplify right side
   607,856x = 1,979,868,498,084
5. Step 5: Solve for x
   x = 1,979,868,498,084/607,856
6. Step 6: Final answer
   x = 3,257,134.09