Finding the Third Proportional to 677,443.50 and 1,048,603.50

Step by Step Solution

1. Step 1: Write the proportion equation
   677,443.50 : 1,048,603.50 = 1,048,603.50 : x
2. Step 2: Convert to fraction form
   677,443.50/1,048,603.50 = 1,048,603.50/x
3. Step 3: Cross multiply
   677,443.50x = 1,048,603.50 × 1,048,603.50
4. Step 4: Simplify right side
   677,443.50x = 1,099,569,300,212.25
5. Step 5: Solve for x
   x = 1,099,569,300,212.25/677,443.50
6. Step 6: Final answer
   x = 1,623,115.88