Finding the Third Proportional to 28,137.38 and 42,308.58

Step by Step Solution

1. Step 1: Write the proportion equation
   28,137.38 : 42,308.58 = 42,308.58 : x
2. Step 2: Convert to fraction form
   28,137.38/42,308.58 = 42,308.58/x
3. Step 3: Cross multiply
   28,137.38x = 42,308.58 × 42,308.58
4. Step 4: Simplify right side
   28,137.38x = 1,790,015,782.96
5. Step 5: Solve for x
   x = 1,790,015,782.96/28,137.38
6. Step 6: Final answer
   x = 63,617.01