Finding the Third Proportional to 693,100.50 and 867,604.50

Step by Step Solution

1. Step 1: Write the proportion equation
   693,100.50 : 867,604.50 = 867,604.50 : x
2. Step 2: Convert to fraction form
   693,100.50/867,604.50 = 867,604.50/x
3. Step 3: Cross multiply
   693,100.50x = 867,604.50 × 867,604.50
4. Step 4: Simplify right side
   693,100.50x = 752,737,568,420.25
5. Step 5: Solve for x
   x = 752,737,568,420.25/693,100.50
6. Step 6: Final answer
   x = 1,086,043.90