Finding the Third Proportional to 772,438.50 and 1,123,595.50

Step by Step Solution

1. Step 1: Write the proportion equation
   772,438.50 : 1,123,595.50 = 1,123,595.50 : x
2. Step 2: Convert to fraction form
   772,438.50/1,123,595.50 = 1,123,595.50/x
3. Step 3: Cross multiply
   772,438.50x = 1,123,595.50 × 1,123,595.50
4. Step 4: Simplify right side
   772,438.50x = 1,262,466,847,620.25
5. Step 5: Solve for x
   x = 1,262,466,847,620.25/772,438.50
6. Step 6: Final answer
   x = 1,634,391.41