Finding the Third Proportional to 28,980.70 and 61,074.42

Step by Step Solution

1. Step 1: Write the proportion equation
   28,980.70 : 61,074.42 = 61,074.42 : x
2. Step 2: Convert to fraction form
   28,980.70/61,074.42 = 61,074.42/x
3. Step 3: Cross multiply
   28,980.70x = 61,074.42 × 61,074.42
4. Step 4: Simplify right side
   28,980.70x = 3,730,085,007.37
5. Step 5: Solve for x
   x = 3,730,085,007.37/28,980.70
6. Step 6: Final answer
   x = 128,709.27