Finding the Third Proportional to 87,662 and 191,910

Step by Step Solution

1. Step 1: Write the proportion equation
   87,662 : 191,910 = 191,910 : x
2. Step 2: Convert to fraction form
   87,662/191,910 = 191,910/x
3. Step 3: Cross multiply
   87,662x = 191,910 × 191,910
4. Step 4: Simplify right side
   87,662x = 36,829,448,100
5. Step 5: Solve for x
   x = 36,829,448,100/87,662
6. Step 6: Final answer
   x = 420,130.14