Finding the Third Proportional to 70,777.50 and 108,622.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,777.50 : 108,622.50 = 108,622.50 : x
2. Step 2: Convert to fraction form
   70,777.50/108,622.50 = 108,622.50/x
3. Step 3: Cross multiply
   70,777.50x = 108,622.50 × 108,622.50
4. Step 4: Simplify right side
   70,777.50x = 11,798,847,506.25
5. Step 5: Solve for x
   x = 11,798,847,506.25/70,777.50
6. Step 6: Final answer
   x = 166,703.37