Finding the Third Proportional to 72,405 and 115,308

Step by Step Solution

1. Step 1: Write the proportion equation
   72,405 : 115,308 = 115,308 : x
2. Step 2: Convert to fraction form
   72,405/115,308 = 115,308/x
3. Step 3: Cross multiply
   72,405x = 115,308 × 115,308
4. Step 4: Simplify right side
   72,405x = 13,295,934,864
5. Step 5: Solve for x
   x = 13,295,934,864/72,405
6. Step 6: Final answer
   x = 183,632.83