Finding the Third Proportional to 34,086.50 and 72,911

Step by Step Solution

1. Step 1: Write the proportion equation
   34,086.50 : 72,911 = 72,911 : x
2. Step 2: Convert to fraction form
   34,086.50/72,911 = 72,911/x
3. Step 3: Cross multiply
   34,086.50x = 72,911 × 72,911
4. Step 4: Simplify right side
   34,086.50x = 5,316,013,921
5. Step 5: Solve for x
   x = 5,316,013,921/34,086.50
6. Step 6: Final answer
   x = 155,956.58