Finding the Third Proportional to 89,093.25 and 139,471.88

Step by Step Solution

1. Step 1: Write the proportion equation
   89,093.25 : 139,471.88 = 139,471.88 : x
2. Step 2: Convert to fraction form
   89,093.25/139,471.88 = 139,471.88/x
3. Step 3: Cross multiply
   89,093.25x = 139,471.88 × 139,471.88
4. Step 4: Simplify right side
   89,093.25x = 19,452,403,916.02
5. Step 5: Solve for x
   x = 19,452,403,916.02/89,093.25
6. Step 6: Final answer
   x = 218,337.57