Finding the Third Proportional to 28,208.25 and 42,312.38

Step by Step Solution

1. Step 1: Write the proportion equation
   28,208.25 : 42,312.38 = 42,312.38 : x
2. Step 2: Convert to fraction form
   28,208.25/42,312.38 = 42,312.38/x
3. Step 3: Cross multiply
   28,208.25x = 42,312.38 × 42,312.38
4. Step 4: Simplify right side
   28,208.25x = 1,790,337,078.14
5. Step 5: Solve for x
   x = 1,790,337,078.14/28,208.25
6. Step 6: Final answer
   x = 63,468.56