Finding the Third Proportional to 71,428.50 and 153,606

Step by Step Solution

1. Step 1: Write the proportion equation
   71,428.50 : 153,606 = 153,606 : x
2. Step 2: Convert to fraction form
   71,428.50/153,606 = 153,606/x
3. Step 3: Cross multiply
   71,428.50x = 153,606 × 153,606
4. Step 4: Simplify right side
   71,428.50x = 23,594,803,236
5. Step 5: Solve for x
   x = 23,594,803,236/71,428.50
6. Step 6: Final answer
   x = 330,327.58