Finding the Third Proportional to 76,656 and 105,556.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,656 : 105,556.50 = 105,556.50 : x
2. Step 2: Convert to fraction form
   76,656/105,556.50 = 105,556.50/x
3. Step 3: Cross multiply
   76,656x = 105,556.50 × 105,556.50
4. Step 4: Simplify right side
   76,656x = 11,142,174,692.25
5. Step 5: Solve for x
   x = 11,142,174,692.25/76,656
6. Step 6: Final answer
   x = 145,352.94