Finding the Third Proportional to 57,599.25 and 89,396.25

Step by Step Solution

1. Step 1: Write the proportion equation
   57,599.25 : 89,396.25 = 89,396.25 : x
2. Step 2: Convert to fraction form
   57,599.25/89,396.25 = 89,396.25/x
3. Step 3: Cross multiply
   57,599.25x = 89,396.25 × 89,396.25
4. Step 4: Simplify right side
   57,599.25x = 7,991,689,514.06
5. Step 5: Solve for x
   x = 7,991,689,514.06/57,599.25
6. Step 6: Final answer
   x = 138,746.42