Finding the Third Proportional to 88,810 and 190,216

Step by Step Solution

1. Step 1: Write the proportion equation
   88,810 : 190,216 = 190,216 : x
2. Step 2: Convert to fraction form
   88,810/190,216 = 190,216/x
3. Step 3: Cross multiply
   88,810x = 190,216 × 190,216
4. Step 4: Simplify right side
   88,810x = 36,182,126,656
5. Step 5: Solve for x
   x = 36,182,126,656/88,810
6. Step 6: Final answer
   x = 407,410.50