Finding the Third Proportional to 71,217 and 112,771.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,217 : 112,771.50 = 112,771.50 : x
2. Step 2: Convert to fraction form
   71,217/112,771.50 = 112,771.50/x
3. Step 3: Cross multiply
   71,217x = 112,771.50 × 112,771.50
4. Step 4: Simplify right side
   71,217x = 12,717,411,212.25
5. Step 5: Solve for x
   x = 12,717,411,212.25/71,217
6. Step 6: Final answer
   x = 178,572.69