Finding the Third Proportional to 31,604.75 and 72,981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,604.75 : 72,981.50 = 72,981.50 : x
2. Step 2: Convert to fraction form
   31,604.75/72,981.50 = 72,981.50/x
3. Step 3: Cross multiply
   31,604.75x = 72,981.50 × 72,981.50
4. Step 4: Simplify right side
   31,604.75x = 5,326,299,342.25
5. Step 5: Solve for x
   x = 5,326,299,342.25/31,604.75
6. Step 6: Final answer
   x = 168,528.44