Finding the Third Proportional to 72,118 and 157,520

Step by Step Solution

1. Step 1: Write the proportion equation
   72,118 : 157,520 = 157,520 : x
2. Step 2: Convert to fraction form
   72,118/157,520 = 157,520/x
3. Step 3: Cross multiply
   72,118x = 157,520 × 157,520
4. Step 4: Simplify right side
   72,118x = 24,812,550,400
5. Step 5: Solve for x
   x = 24,812,550,400/72,118
6. Step 6: Final answer
   x = 344,054.89