Finding the Third Proportional to 191,340 and 298,638

Step by Step Solution

1. Step 1: Write the proportion equation
   191,340 : 298,638 = 298,638 : x
2. Step 2: Convert to fraction form
   191,340/298,638 = 298,638/x
3. Step 3: Cross multiply
   191,340x = 298,638 × 298,638
4. Step 4: Simplify right side
   191,340x = 89,184,655,044
5. Step 5: Solve for x
   x = 89,184,655,044/191,340
6. Step 6: Final answer
   x = 466,105.65