Finding the Third Proportional to 72,840 and 150,736.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,840 : 150,736.50 = 150,736.50 : x
2. Step 2: Convert to fraction form
   72,840/150,736.50 = 150,736.50/x
3. Step 3: Cross multiply
   72,840x = 150,736.50 × 150,736.50
4. Step 4: Simplify right side
   72,840x = 22,721,492,432.25
5. Step 5: Solve for x
   x = 22,721,492,432.25/72,840
6. Step 6: Final answer
   x = 311,937.02