Finding the Third Proportional to 39,556.50 and 64,267.50

Step by Step Solution

1. Step 1: Write the proportion equation
   39,556.50 : 64,267.50 = 64,267.50 : x
2. Step 2: Convert to fraction form
   39,556.50/64,267.50 = 64,267.50/x
3. Step 3: Cross multiply
   39,556.50x = 64,267.50 × 64,267.50
4. Step 4: Simplify right side
   39,556.50x = 4,130,311,556.25
5. Step 5: Solve for x
   x = 4,130,311,556.25/39,556.50
6. Step 6: Final answer
   x = 104,415.50