Finding the Third Proportional to 688,951.50 and 979,845

Step by Step Solution

1. Step 1: Write the proportion equation
   688,951.50 : 979,845 = 979,845 : x
2. Step 2: Convert to fraction form
   688,951.50/979,845 = 979,845/x
3. Step 3: Cross multiply
   688,951.50x = 979,845 × 979,845
4. Step 4: Simplify right side
   688,951.50x = 960,096,224,025
5. Step 5: Solve for x
   x = 960,096,224,025/688,951.50
6. Step 6: Final answer
   x = 1,393,561.41