Finding the Third Proportional to 200,820 and 434,701.50

Step by Step Solution

1. Step 1: Write the proportion equation
   200,820 : 434,701.50 = 434,701.50 : x
2. Step 2: Convert to fraction form
   200,820/434,701.50 = 434,701.50/x
3. Step 3: Cross multiply
   200,820x = 434,701.50 × 434,701.50
4. Step 4: Simplify right side
   200,820x = 188,965,394,102.25
5. Step 5: Solve for x
   x = 188,965,394,102.25/200,820
6. Step 6: Final answer
   x = 940,969.00