Finding the Third Proportional to 28,671.75 and 42,161.63

Step by Step Solution

1. Step 1: Write the proportion equation
   28,671.75 : 42,161.63 = 42,161.63 : x
2. Step 2: Convert to fraction form
   28,671.75/42,161.63 = 42,161.63/x
3. Step 3: Cross multiply
   28,671.75x = 42,161.63 × 42,161.63
4. Step 4: Simplify right side
   28,671.75x = 1,777,602,622.64
5. Step 5: Solve for x
   x = 1,777,602,622.64/28,671.75
6. Step 6: Final answer
   x = 61,998.40