Finding the Third Proportional to 394,224 and 864,748.50

Step by Step Solution

1. Step 1: Write the proportion equation
   394,224 : 864,748.50 = 864,748.50 : x
2. Step 2: Convert to fraction form
   394,224/864,748.50 = 864,748.50/x
3. Step 3: Cross multiply
   394,224x = 864,748.50 × 864,748.50
4. Step 4: Simplify right side
   394,224x = 747,789,968,252.25
5. Step 5: Solve for x
   x = 747,789,968,252.25/394,224
6. Step 6: Final answer
   x = 1,896,865.66