Finding the Third Proportional to 64,738.50 and 87,466.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,738.50 : 87,466.50 = 87,466.50 : x
2. Step 2: Convert to fraction form
   64,738.50/87,466.50 = 87,466.50/x
3. Step 3: Cross multiply
   64,738.50x = 87,466.50 × 87,466.50
4. Step 4: Simplify right side
   64,738.50x = 7,650,388,622.25
5. Step 5: Solve for x
   x = 7,650,388,622.25/64,738.50
6. Step 6: Final answer
   x = 118,173.71