Finding the Third Proportional to 776,464 and 1,646,240

Step by Step Solution

1. Step 1: Write the proportion equation
   776,464 : 1,646,240 = 1,646,240 : x
2. Step 2: Convert to fraction form
   776,464/1,646,240 = 1,646,240/x
3. Step 3: Cross multiply
   776,464x = 1,646,240 × 1,646,240
4. Step 4: Simplify right side
   776,464x = 2,710,106,137,600
5. Step 5: Solve for x
   x = 2,710,106,137,600/776,464
6. Step 6: Final answer
   x = 3,490,317.82