Finding the Third Proportional to 904,406 and 1,399,755

Step by Step Solution

1. Step 1: Write the proportion equation
   904,406 : 1,399,755 = 1,399,755 : x
2. Step 2: Convert to fraction form
   904,406/1,399,755 = 1,399,755/x
3. Step 3: Cross multiply
   904,406x = 1,399,755 × 1,399,755
4. Step 4: Simplify right side
   904,406x = 1,959,314,060,025
5. Step 5: Solve for x
   x = 1,959,314,060,025/904,406
6. Step 6: Final answer
   x = 2,166,409.84