Finding the Third Proportional to 65,212.50 and 87,349.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,212.50 : 87,349.50 = 87,349.50 : x
2. Step 2: Convert to fraction form
   65,212.50/87,349.50 = 87,349.50/x
3. Step 3: Cross multiply
   65,212.50x = 87,349.50 × 87,349.50
4. Step 4: Simplify right side
   65,212.50x = 7,629,935,150.25
5. Step 5: Solve for x
   x = 7,629,935,150.25/65,212.50
6. Step 6: Final answer
   x = 117,001.11