Finding the Third Proportional to 1,065,904 and 1,638,377

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065,904 : 1,638,377 = 1,638,377 : x
2. Step 2: Convert to fraction form
   1,065,904/1,638,377 = 1,638,377/x
3. Step 3: Cross multiply
   1,065,904x = 1,638,377 × 1,638,377
4. Step 4: Simplify right side
   1,065,904x = 2,684,279,194,129
5. Step 5: Solve for x
   x = 2,684,279,194,129/1,065,904
6. Step 6: Final answer
   x = 2,518,312.34