Finding the Third Proportional to 686,912 and 1,010,504

Step by Step Solution

1. Step 1: Write the proportion equation
   686,912 : 1,010,504 = 1,010,504 : x
2. Step 2: Convert to fraction form
   686,912/1,010,504 = 1,010,504/x
3. Step 3: Cross multiply
   686,912x = 1,010,504 × 1,010,504
4. Step 4: Simplify right side
   686,912x = 1,021,118,334,016
5. Step 5: Solve for x
   x = 1,021,118,334,016/686,912
6. Step 6: Final answer
   x = 1,486,534.42