Finding the Third Proportional to 89,678.25 and 134,730

Step by Step Solution

1. Step 1: Write the proportion equation
   89,678.25 : 134,730 = 134,730 : x
2. Step 2: Convert to fraction form
   89,678.25/134,730 = 134,730/x
3. Step 3: Cross multiply
   89,678.25x = 134,730 × 134,730
4. Step 4: Simplify right side
   89,678.25x = 18,152,172,900
5. Step 5: Solve for x
   x = 18,152,172,900/89,678.25
6. Step 6: Final answer
   x = 202,414.44