Finding the Third Proportional to 686,772 and 1,010,296

Step by Step Solution

1. Step 1: Write the proportion equation
   686,772 : 1,010,296 = 1,010,296 : x
2. Step 2: Convert to fraction form
   686,772/1,010,296 = 1,010,296/x
3. Step 3: Cross multiply
   686,772x = 1,010,296 × 1,010,296
4. Step 4: Simplify right side
   686,772x = 1,020,698,007,616
5. Step 5: Solve for x
   x = 1,020,698,007,616/686,772
6. Step 6: Final answer
   x = 1,486,225.43