Finding the Third Proportional to 696,878 and 981,389.50

Step by Step Solution

1. Step 1: Write the proportion equation
   696,878 : 981,389.50 = 981,389.50 : x
2. Step 2: Convert to fraction form
   696,878/981,389.50 = 981,389.50/x
3. Step 3: Cross multiply
   696,878x = 981,389.50 × 981,389.50
4. Step 4: Simplify right side
   696,878x = 963,125,350,710.25
5. Step 5: Solve for x
   x = 963,125,350,710.25/696,878
6. Step 6: Final answer
   x = 1,382,057.33