Finding the Third Proportional to 393,456 and 849,727.50

Step by Step Solution

1. Step 1: Write the proportion equation
   393,456 : 849,727.50 = 849,727.50 : x
2. Step 2: Convert to fraction form
   393,456/849,727.50 = 849,727.50/x
3. Step 3: Cross multiply
   393,456x = 849,727.50 × 849,727.50
4. Step 4: Simplify right side
   393,456x = 722,036,824,256.25
5. Step 5: Solve for x
   x = 722,036,824,256.25/393,456
6. Step 6: Final answer
   x = 1,835,114.53