Finding the Third Proportional to 89,843.34 and 139,093.88

Step by Step Solution

1. Step 1: Write the proportion equation
   89,843.34 : 139,093.88 = 139,093.88 : x
2. Step 2: Convert to fraction form
   89,843.34/139,093.88 = 139,093.88/x
3. Step 3: Cross multiply
   89,843.34x = 139,093.88 × 139,093.88
4. Step 4: Simplify right side
   89,843.34x = 19,347,106,062.52
5. Step 5: Solve for x
   x = 19,347,106,062.52/89,843.34
6. Step 6: Final answer
   x = 215,342.68