Finding the Third Proportional to 993,643.50 and 2,155,321.50

Step by Step Solution

1. Step 1: Write the proportion equation
   993,643.50 : 2,155,321.50 = 2,155,321.50 : x
2. Step 2: Convert to fraction form
   993,643.50/2,155,321.50 = 2,155,321.50/x
3. Step 3: Cross multiply
   993,643.50x = 2,155,321.50 × 2,155,321.50
4. Step 4: Simplify right side
   993,643.50x = 4,645,410,768,362.25
5. Step 5: Solve for x
   x = 4,645,410,768,362.25/993,643.50
6. Step 6: Final answer
   x = 4,675,128.22