Finding the Third Proportional to 160,516.50 and 248,889

Step by Step Solution

1. Step 1: Write the proportion equation
   160,516.50 : 248,889 = 248,889 : x
2. Step 2: Convert to fraction form
   160,516.50/248,889 = 248,889/x
3. Step 3: Cross multiply
   160,516.50x = 248,889 × 248,889
4. Step 4: Simplify right side
   160,516.50x = 61,945,734,321
5. Step 5: Solve for x
   x = 61,945,734,321/160,516.50
6. Step 6: Final answer
   x = 385,915.06