Finding the Third Proportional to 28,779.75 and 60,977.25

Step by Step Solution

1. Step 1: Write the proportion equation
   28,779.75 : 60,977.25 = 60,977.25 : x
2. Step 2: Convert to fraction form
   28,779.75/60,977.25 = 60,977.25/x
3. Step 3: Cross multiply
   28,779.75x = 60,977.25 × 60,977.25
4. Step 4: Simplify right side
   28,779.75x = 3,718,225,017.56
5. Step 5: Solve for x
   x = 3,718,225,017.56/28,779.75
6. Step 6: Final answer
   x = 129,195.88