Finding the Third Proportional to 771,338 and 1,661,210

Step by Step Solution

1. Step 1: Write the proportion equation
   771,338 : 1,661,210 = 1,661,210 : x
2. Step 2: Convert to fraction form
   771,338/1,661,210 = 1,661,210/x
3. Step 3: Cross multiply
   771,338x = 1,661,210 × 1,661,210
4. Step 4: Simplify right side
   771,338x = 2,759,618,664,100
5. Step 5: Solve for x
   x = 2,759,618,664,100/771,338
6. Step 6: Final answer
   x = 3,577,703.50