Finding the Third Proportional to 348,750 and 493,618.50

Step by Step Solution

1. Step 1: Write the proportion equation
   348,750 : 493,618.50 = 493,618.50 : x
2. Step 2: Convert to fraction form
   348,750/493,618.50 = 493,618.50/x
3. Step 3: Cross multiply
   348,750x = 493,618.50 × 493,618.50
4. Step 4: Simplify right side
   348,750x = 243,659,223,542.25
5. Step 5: Solve for x
   x = 243,659,223,542.25/348,750
6. Step 6: Final answer
   x = 698,664.44