Finding the Third Proportional to 686,898 and 1,010,484

Step by Step Solution

1. Step 1: Write the proportion equation
   686,898 : 1,010,484 = 1,010,484 : x
2. Step 2: Convert to fraction form
   686,898/1,010,484 = 1,010,484/x
3. Step 3: Cross multiply
   686,898x = 1,010,484 × 1,010,484
4. Step 4: Simplify right side
   686,898x = 1,021,077,914,256
5. Step 5: Solve for x
   x = 1,021,077,914,256/686,898
6. Step 6: Final answer
   x = 1,486,505.88