Finding the Third Proportional to 191,348 and 417,142

Step by Step Solution

1. Step 1: Write the proportion equation
   191,348 : 417,142 = 417,142 : x
2. Step 2: Convert to fraction form
   191,348/417,142 = 417,142/x
3. Step 3: Cross multiply
   191,348x = 417,142 × 417,142
4. Step 4: Simplify right side
   191,348x = 174,007,448,164
5. Step 5: Solve for x
   x = 174,007,448,164/191,348
6. Step 6: Final answer
   x = 909,376.88