Finding the Third Proportional to 28,380 and 60,345

Step by Step Solution

1. Step 1: Write the proportion equation
   28,380 : 60,345 = 60,345 : x
2. Step 2: Convert to fraction form
   28,380/60,345 = 60,345/x
3. Step 3: Cross multiply
   28,380x = 60,345 × 60,345
4. Step 4: Simplify right side
   28,380x = 3,641,519,025
5. Step 5: Solve for x
   x = 3,641,519,025/28,380
6. Step 6: Final answer
   x = 128,312.86