Finding the Third Proportional to 686,752 and 1,010,272

Step by Step Solution

1. Step 1: Write the proportion equation
   686,752 : 1,010,272 = 1,010,272 : x
2. Step 2: Convert to fraction form
   686,752/1,010,272 = 1,010,272/x
3. Step 3: Cross multiply
   686,752x = 1,010,272 × 1,010,272
4. Step 4: Simplify right side
   686,752x = 1,020,649,513,984
5. Step 5: Solve for x
   x = 1,020,649,513,984/686,752
6. Step 6: Final answer
   x = 1,486,198.09