Finding the Third Proportional to 147,619.50 and 314,571

Step by Step Solution

1. Step 1: Write the proportion equation
   147,619.50 : 314,571 = 314,571 : x
2. Step 2: Convert to fraction form
   147,619.50/314,571 = 314,571/x
3. Step 3: Cross multiply
   147,619.50x = 314,571 × 314,571
4. Step 4: Simplify right side
   147,619.50x = 98,954,914,041
5. Step 5: Solve for x
   x = 98,954,914,041/147,619.50
6. Step 6: Final answer
   x = 670,337.69