Finding the Third Proportional to 75,124.50 and 153,030

Step by Step Solution

1. Step 1: Write the proportion equation
   75,124.50 : 153,030 = 153,030 : x
2. Step 2: Convert to fraction form
   75,124.50/153,030 = 153,030/x
3. Step 3: Cross multiply
   75,124.50x = 153,030 × 153,030
4. Step 4: Simplify right side
   75,124.50x = 23,418,180,900
5. Step 5: Solve for x
   x = 23,418,180,900/75,124.50
6. Step 6: Final answer
   x = 311,724.95