Finding the Third Proportional to 646,983 and 1,407,330

Step by Step Solution

1. Step 1: Write the proportion equation
   646,983 : 1,407,330 = 1,407,330 : x
2. Step 2: Convert to fraction form
   646,983/1,407,330 = 1,407,330/x
3. Step 3: Cross multiply
   646,983x = 1,407,330 × 1,407,330
4. Step 4: Simplify right side
   646,983x = 1,980,577,728,900
5. Step 5: Solve for x
   x = 1,980,577,728,900/646,983
6. Step 6: Final answer
   x = 3,061,251.58