Finding the Third Proportional to 191,732 and 403,336

Step by Step Solution

1. Step 1: Write the proportion equation
   191,732 : 403,336 = 403,336 : x
2. Step 2: Convert to fraction form
   191,732/403,336 = 403,336/x
3. Step 3: Cross multiply
   191,732x = 403,336 × 403,336
4. Step 4: Simplify right side
   191,732x = 162,679,928,896
5. Step 5: Solve for x
   x = 162,679,928,896/191,732
6. Step 6: Final answer
   x = 848,475.63