Finding the Third Proportional to 444,964.50 and 921,456

Step by Step Solution

1. Step 1: Write the proportion equation
   444,964.50 : 921,456 = 921,456 : x
2. Step 2: Convert to fraction form
   444,964.50/921,456 = 921,456/x
3. Step 3: Cross multiply
   444,964.50x = 921,456 × 921,456
4. Step 4: Simplify right side
   444,964.50x = 849,081,159,936
5. Step 5: Solve for x
   x = 849,081,159,936/444,964.50
6. Step 6: Final answer
   x = 1,908,199.78