Finding the Third Proportional to 190,637 and 410,821.25

Step by Step Solution

1. Step 1: Write the proportion equation
   190,637 : 410,821.25 = 410,821.25 : x
2. Step 2: Convert to fraction form
   190,637/410,821.25 = 410,821.25/x
3. Step 3: Cross multiply
   190,637x = 410,821.25 × 410,821.25
4. Step 4: Simplify right side
   190,637x = 168,774,099,451.56
5. Step 5: Solve for x
   x = 168,774,099,451.56/190,637
6. Step 6: Final answer
   x = 885,316.59