Finding the Third Proportional to 686,866 and 1,510,754

Step by Step Solution

1. Step 1: Write the proportion equation
   686,866 : 1,510,754 = 1,510,754 : x
2. Step 2: Convert to fraction form
   686,866/1,510,754 = 1,510,754/x
3. Step 3: Cross multiply
   686,866x = 1,510,754 × 1,510,754
4. Step 4: Simplify right side
   686,866x = 2,282,377,648,516
5. Step 5: Solve for x
   x = 2,282,377,648,516/686,866
6. Step 6: Final answer
   x = 3,322,886.34