Finding the Third Proportional to 59,172 and 91,878

Step by Step Solution

1. Step 1: Write the proportion equation
   59,172 : 91,878 = 91,878 : x
2. Step 2: Convert to fraction form
   59,172/91,878 = 91,878/x
3. Step 3: Cross multiply
   59,172x = 91,878 × 91,878
4. Step 4: Simplify right side
   59,172x = 8,441,566,884
5. Step 5: Solve for x
   x = 8,441,566,884/59,172
6. Step 6: Final answer
   x = 142,661.51