Finding the Third Proportional to 90,472 and 191,151

Step by Step Solution

1. Step 1: Write the proportion equation
   90,472 : 191,151 = 191,151 : x
2. Step 2: Convert to fraction form
   90,472/191,151 = 191,151/x
3. Step 3: Cross multiply
   90,472x = 191,151 × 191,151
4. Step 4: Simplify right side
   90,472x = 36,538,704,801
5. Step 5: Solve for x
   x = 36,538,704,801/90,472
6. Step 6: Final answer
   x = 403,867.55