Finding the Third Proportional to 71,298 and 153,124.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,298 : 153,124.50 = 153,124.50 : x
2. Step 2: Convert to fraction form
   71,298/153,124.50 = 153,124.50/x
3. Step 3: Cross multiply
   71,298x = 153,124.50 × 153,124.50
4. Step 4: Simplify right side
   71,298x = 23,447,112,500.25
5. Step 5: Solve for x
   x = 23,447,112,500.25/71,298
6. Step 6: Final answer
   x = 328,860.73