Finding the Third Proportional to 42,012.84 and 66,556.69

Step by Step Solution

1. Step 1: Write the proportion equation
   42,012.84 : 66,556.69 = 66,556.69 : x
2. Step 2: Convert to fraction form
   42,012.84/66,556.69 = 66,556.69/x
3. Step 3: Cross multiply
   42,012.84x = 66,556.69 × 66,556.69
4. Step 4: Simplify right side
   42,012.84x = 4,429,792,650.97
5. Step 5: Solve for x
   x = 4,429,792,650.97/42,012.84
6. Step 6: Final answer
   x = 105,439.01