Finding the Third Proportional to 199,629 and 307,705.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,629 : 307,705.50 = 307,705.50 : x
2. Step 2: Convert to fraction form
   199,629/307,705.50 = 307,705.50/x
3. Step 3: Cross multiply
   199,629x = 307,705.50 × 307,705.50
4. Step 4: Simplify right side
   199,629x = 94,682,674,730.25
5. Step 5: Solve for x
   x = 94,682,674,730.25/199,629
6. Step 6: Final answer
   x = 474,293.19