Finding the Third Proportional to 88,641.84 and 136,243.27

Step by Step Solution

1. Step 1: Write the proportion equation
   88,641.84 : 136,243.27 = 136,243.27 : x
2. Step 2: Convert to fraction form
   88,641.84/136,243.27 = 136,243.27/x
3. Step 3: Cross multiply
   88,641.84x = 136,243.27 × 136,243.27
4. Step 4: Simplify right side
   88,641.84x = 18,562,227,428.16
5. Step 5: Solve for x
   x = 18,562,227,428.16/88,641.84
6. Step 6: Final answer
   x = 209,407.05