Finding the Third Proportional to 42,881.25 and 65,138.63

Step by Step Solution

1. Step 1: Write the proportion equation
   42,881.25 : 65,138.63 = 65,138.63 : x
2. Step 2: Convert to fraction form
   42,881.25/65,138.63 = 65,138.63/x
3. Step 3: Cross multiply
   42,881.25x = 65,138.63 × 65,138.63
4. Step 4: Simplify right side
   42,881.25x = 4,243,040,466.89
5. Step 5: Solve for x
   x = 4,243,040,466.89/42,881.25
6. Step 6: Final answer
   x = 98,948.62