Finding the Third Proportional to 693,039.50 and 1,036,738.50

Step by Step Solution

1. Step 1: Write the proportion equation
   693,039.50 : 1,036,738.50 = 1,036,738.50 : x
2. Step 2: Convert to fraction form
   693,039.50/1,036,738.50 = 1,036,738.50/x
3. Step 3: Cross multiply
   693,039.50x = 1,036,738.50 × 1,036,738.50
4. Step 4: Simplify right side
   693,039.50x = 1,074,826,717,382.25
5. Step 5: Solve for x
   x = 1,074,826,717,382.25/693,039.50
6. Step 6: Final answer
   x = 1,550,888.11