Finding the Third Proportional to 131,380 and 272,100

Step by Step Solution

1. Step 1: Write the proportion equation
   131,380 : 272,100 = 272,100 : x
2. Step 2: Convert to fraction form
   131,380/272,100 = 272,100/x
3. Step 3: Cross multiply
   131,380x = 272,100 × 272,100
4. Step 4: Simplify right side
   131,380x = 74,038,410,000
5. Step 5: Solve for x
   x = 74,038,410,000/131,380
6. Step 6: Final answer
   x = 563,543.99