Finding the Third Proportional to 191,224 and 415,616

Step by Step Solution

1. Step 1: Write the proportion equation
   191,224 : 415,616 = 415,616 : x
2. Step 2: Convert to fraction form
   191,224/415,616 = 415,616/x
3. Step 3: Cross multiply
   191,224x = 415,616 × 415,616
4. Step 4: Simplify right side
   191,224x = 172,736,659,456
5. Step 5: Solve for x
   x = 172,736,659,456/191,224
6. Step 6: Final answer
   x = 903,321.02