Finding the Third Proportional to 200,040 and 434,426

Step by Step Solution

1. Step 1: Write the proportion equation
   200,040 : 434,426 = 434,426 : x
2. Step 2: Convert to fraction form
   200,040/434,426 = 434,426/x
3. Step 3: Cross multiply
   200,040x = 434,426 × 434,426
4. Step 4: Simplify right side
   200,040x = 188,725,949,476
5. Step 5: Solve for x
   x = 188,725,949,476/200,040
6. Step 6: Final answer
   x = 943,441.06