Finding the Third Proportional to 59,307 and 91,116.75

Step by Step Solution

1. Step 1: Write the proportion equation
   59,307 : 91,116.75 = 91,116.75 : x
2. Step 2: Convert to fraction form
   59,307/91,116.75 = 91,116.75/x
3. Step 3: Cross multiply
   59,307x = 91,116.75 × 91,116.75
4. Step 4: Simplify right side
   59,307x = 8,302,262,130.56
5. Step 5: Solve for x
   x = 8,302,262,130.56/59,307
6. Step 6: Final answer
   x = 139,987.90