Finding the Third Proportional to 772,780 and 1,659,822

Step by Step Solution

1. Step 1: Write the proportion equation
   772,780 : 1,659,822 = 1,659,822 : x
2. Step 2: Convert to fraction form
   772,780/1,659,822 = 1,659,822/x
3. Step 3: Cross multiply
   772,780x = 1,659,822 × 1,659,822
4. Step 4: Simplify right side
   772,780x = 2,755,009,071,684
5. Step 5: Solve for x
   x = 2,755,009,071,684/772,780
6. Step 6: Final answer
   x = 3,565,062.59