Finding the Third Proportional to 178,711.50 and 272,260

Step by Step Solution

1. Step 1: Write the proportion equation
   178,711.50 : 272,260 = 272,260 : x
2. Step 2: Convert to fraction form
   178,711.50/272,260 = 272,260/x
3. Step 3: Cross multiply
   178,711.50x = 272,260 × 272,260
4. Step 4: Simplify right side
   178,711.50x = 74,125,507,600
5. Step 5: Solve for x
   x = 74,125,507,600/178,711.50
6. Step 6: Final answer
   x = 414,777.49