Finding the Third Proportional to 56,859 and 88,993.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,859 : 88,993.50 = 88,993.50 : x
2. Step 2: Convert to fraction form
   56,859/88,993.50 = 88,993.50/x
3. Step 3: Cross multiply
   56,859x = 88,993.50 × 88,993.50
4. Step 4: Simplify right side
   56,859x = 7,919,843,042.25
5. Step 5: Solve for x
   x = 7,919,843,042.25/56,859
6. Step 6: Final answer
   x = 139,289.17