Finding the Third Proportional to 73,990.50 and 160,434

Step by Step Solution

1. Step 1: Write the proportion equation
   73,990.50 : 160,434 = 160,434 : x
2. Step 2: Convert to fraction form
   73,990.50/160,434 = 160,434/x
3. Step 3: Cross multiply
   73,990.50x = 160,434 × 160,434
4. Step 4: Simplify right side
   73,990.50x = 25,739,068,356
5. Step 5: Solve for x
   x = 25,739,068,356/73,990.50
6. Step 6: Final answer
   x = 347,869.91