Finding the Third Proportional to 121,041 and 186,665.50

Step by Step Solution

1. Step 1: Write the proportion equation
   121,041 : 186,665.50 = 186,665.50 : x
2. Step 2: Convert to fraction form
   121,041/186,665.50 = 186,665.50/x
3. Step 3: Cross multiply
   121,041x = 186,665.50 × 186,665.50
4. Step 4: Simplify right side
   121,041x = 34,844,008,890.25
5. Step 5: Solve for x
   x = 34,844,008,890.25/121,041
6. Step 6: Final answer
   x = 287,869.47