Finding the Third Proportional to 28,157.63 and 61,215.75

Step by Step Solution

1. Step 1: Write the proportion equation
   28,157.63 : 61,215.75 = 61,215.75 : x
2. Step 2: Convert to fraction form
   28,157.63/61,215.75 = 61,215.75/x
3. Step 3: Cross multiply
   28,157.63x = 61,215.75 × 61,215.75
4. Step 4: Simplify right side
   28,157.63x = 3,747,368,048.06
5. Step 5: Solve for x
   x = 3,747,368,048.06/28,157.63
6. Step 6: Final answer
   x = 133,085.37