Finding the Third Proportional to 79,815 and 116,212.50

Step by Step Solution

1. Step 1: Write the proportion equation
   79,815 : 116,212.50 = 116,212.50 : x
2. Step 2: Convert to fraction form
   79,815/116,212.50 = 116,212.50/x
3. Step 3: Cross multiply
   79,815x = 116,212.50 × 116,212.50
4. Step 4: Simplify right side
   79,815x = 13,505,345,156.25
5. Step 5: Solve for x
   x = 13,505,345,156.25/79,815
6. Step 6: Final answer
   x = 169,208.11