Finding the Third Proportional to 638,852.50 and 1,410,626

Step by Step Solution

1. Step 1: Write the proportion equation
   638,852.50 : 1,410,626 = 1,410,626 : x
2. Step 2: Convert to fraction form
   638,852.50/1,410,626 = 1,410,626/x
3. Step 3: Cross multiply
   638,852.50x = 1,410,626 × 1,410,626
4. Step 4: Simplify right side
   638,852.50x = 1,989,865,711,876
5. Step 5: Solve for x
   x = 1,989,865,711,876/638,852.50
6. Step 6: Final answer
   x = 3,114,749.82