Finding the Third Proportional to 28,851.75 and 42,143.63

Step by Step Solution

1. Step 1: Write the proportion equation
   28,851.75 : 42,143.63 = 42,143.63 : x
2. Step 2: Convert to fraction form
   28,851.75/42,143.63 = 42,143.63/x
3. Step 3: Cross multiply
   28,851.75x = 42,143.63 × 42,143.63
4. Step 4: Simplify right side
   28,851.75x = 1,776,085,128.14
5. Step 5: Solve for x
   x = 1,776,085,128.14/28,851.75
6. Step 6: Final answer
   x = 61,559.01