Finding the Third Proportional to 137,619.50 and 193,800

Step by Step Solution

1. Step 1: Write the proportion equation
   137,619.50 : 193,800 = 193,800 : x
2. Step 2: Convert to fraction form
   137,619.50/193,800 = 193,800/x
3. Step 3: Cross multiply
   137,619.50x = 193,800 × 193,800
4. Step 4: Simplify right side
   137,619.50x = 37,558,440,000
5. Step 5: Solve for x
   x = 37,558,440,000/137,619.50
6. Step 6: Final answer
   x = 272,915.10