Finding the Third Proportional to 35,518.50 and 72,261

Step by Step Solution

1. Step 1: Write the proportion equation
   35,518.50 : 72,261 = 72,261 : x
2. Step 2: Convert to fraction form
   35,518.50/72,261 = 72,261/x
3. Step 3: Cross multiply
   35,518.50x = 72,261 × 72,261
4. Step 4: Simplify right side
   35,518.50x = 5,221,652,121
5. Step 5: Solve for x
   x = 5,221,652,121/35,518.50
6. Step 6: Final answer
   x = 147,012.18