Finding the Third Proportional to 309,619.97 and 473,662.69

Step by Step Solution

1. Step 1: Write the proportion equation
   309,619.97 : 473,662.69 = 473,662.69 : x
2. Step 2: Convert to fraction form
   309,619.97/473,662.69 = 473,662.69/x
3. Step 3: Cross multiply
   309,619.97x = 473,662.69 × 473,662.69
4. Step 4: Simplify right side
   309,619.97x = 224,356,341,529.72
5. Step 5: Solve for x
   x = 224,356,341,529.72/309,619.97
6. Step 6: Final answer
   x = 724,618.45