Finding the Third Proportional to 90,410 and 131,511

Step by Step Solution

1. Step 1: Write the proportion equation
   90,410 : 131,511 = 131,511 : x
2. Step 2: Convert to fraction form
   90,410/131,511 = 131,511/x
3. Step 3: Cross multiply
   90,410x = 131,511 × 131,511
4. Step 4: Simplify right side
   90,410x = 17,295,143,121
5. Step 5: Solve for x
   x = 17,295,143,121/90,410
6. Step 6: Final answer
   x = 191,296.79