Finding the Third Proportional to 631,128 and 1,377,904

Step by Step Solution

1. Step 1: Write the proportion equation
   631,128 : 1,377,904 = 1,377,904 : x
2. Step 2: Convert to fraction form
   631,128/1,377,904 = 1,377,904/x
3. Step 3: Cross multiply
   631,128x = 1,377,904 × 1,377,904
4. Step 4: Simplify right side
   631,128x = 1,898,619,433,216
5. Step 5: Solve for x
   x = 1,898,619,433,216/631,128
6. Step 6: Final answer
   x = 3,008,295.36