Finding the Third Proportional to 72,445.50 and 134,199

Step by Step Solution

1. Step 1: Write the proportion equation
   72,445.50 : 134,199 = 134,199 : x
2. Step 2: Convert to fraction form
   72,445.50/134,199 = 134,199/x
3. Step 3: Cross multiply
   72,445.50x = 134,199 × 134,199
4. Step 4: Simplify right side
   72,445.50x = 18,009,371,601
5. Step 5: Solve for x
   x = 18,009,371,601/72,445.50
6. Step 6: Final answer
   x = 248,592.00