Finding the Third Proportional to 750,458.50 and 1,123,635.50

Step by Step Solution

1. Step 1: Write the proportion equation
   750,458.50 : 1,123,635.50 = 1,123,635.50 : x
2. Step 2: Convert to fraction form
   750,458.50/1,123,635.50 = 1,123,635.50/x
3. Step 3: Cross multiply
   750,458.50x = 1,123,635.50 × 1,123,635.50
4. Step 4: Simplify right side
   750,458.50x = 1,262,556,736,860.25
5. Step 5: Solve for x
   x = 1,262,556,736,860.25/750,458.50
6. Step 6: Final answer
   x = 1,682,380.49