Finding the Third Proportional to 348,708 and 538,834.50

Step by Step Solution

1. Step 1: Write the proportion equation
   348,708 : 538,834.50 = 538,834.50 : x
2. Step 2: Convert to fraction form
   348,708/538,834.50 = 538,834.50/x
3. Step 3: Cross multiply
   348,708x = 538,834.50 × 538,834.50
4. Step 4: Simplify right side
   348,708x = 290,342,618,390.25
5. Step 5: Solve for x
   x = 290,342,618,390.25/348,708
6. Step 6: Final answer
   x = 832,623.91