Finding the Third Proportional to 774,776 and 1,686,792

Step by Step Solution

1. Step 1: Write the proportion equation
   774,776 : 1,686,792 = 1,686,792 : x
2. Step 2: Convert to fraction form
   774,776/1,686,792 = 1,686,792/x
3. Step 3: Cross multiply
   774,776x = 1,686,792 × 1,686,792
4. Step 4: Simplify right side
   774,776x = 2,845,267,251,264
5. Step 5: Solve for x
   x = 2,845,267,251,264/774,776
6. Step 6: Final answer
   x = 3,672,374.02