Finding the Third Proportional to 70,490 and 109,191

Step by Step Solution

1. Step 1: Write the proportion equation
   70,490 : 109,191 = 109,191 : x
2. Step 2: Convert to fraction form
   70,490/109,191 = 109,191/x
3. Step 3: Cross multiply
   70,490x = 109,191 × 109,191
4. Step 4: Simplify right side
   70,490x = 11,922,674,481
5. Step 5: Solve for x
   x = 11,922,674,481/70,490
6. Step 6: Final answer
   x = 169,139.94