Finding the Third Proportional to 71,302.50 and 154,921.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,302.50 : 154,921.50 = 154,921.50 : x
2. Step 2: Convert to fraction form
   71,302.50/154,921.50 = 154,921.50/x
3. Step 3: Cross multiply
   71,302.50x = 154,921.50 × 154,921.50
4. Step 4: Simplify right side
   71,302.50x = 24,000,671,162.25
5. Step 5: Solve for x
   x = 24,000,671,162.25/71,302.50
6. Step 6: Final answer
   x = 336,603.50