Finding the Third Proportional to 766,677 and 1,680,978

Step by Step Solution

1. Step 1: Write the proportion equation
   766,677 : 1,680,978 = 1,680,978 : x
2. Step 2: Convert to fraction form
   766,677/1,680,978 = 1,680,978/x
3. Step 3: Cross multiply
   766,677x = 1,680,978 × 1,680,978
4. Step 4: Simplify right side
   766,677x = 2,825,687,036,484
5. Step 5: Solve for x
   x = 2,825,687,036,484/766,677
6. Step 6: Final answer
   x = 3,685,629.07