Finding the Third Proportional to 1,129,664 and 1,659,904

Step by Step Solution

1. Step 1: Write the proportion equation
   1,129,664 : 1,659,904 = 1,659,904 : x
2. Step 2: Convert to fraction form
   1,129,664/1,659,904 = 1,659,904/x
3. Step 3: Cross multiply
   1,129,664x = 1,659,904 × 1,659,904
4. Step 4: Simplify right side
   1,129,664x = 2,755,281,289,216
5. Step 5: Solve for x
   x = 2,755,281,289,216/1,129,664
6. Step 6: Final answer
   x = 2,439,027.26