Finding the Third Proportional to 160,521 and 248,896.50

Step by Step Solution

1. Step 1: Write the proportion equation
   160,521 : 248,896.50 = 248,896.50 : x
2. Step 2: Convert to fraction form
   160,521/248,896.50 = 248,896.50/x
3. Step 3: Cross multiply
   160,521x = 248,896.50 × 248,896.50
4. Step 4: Simplify right side
   160,521x = 61,949,467,712.25
5. Step 5: Solve for x
   x = 61,949,467,712.25/160,521
6. Step 6: Final answer
   x = 385,927.50