Finding the Third Proportional to 60,900 and 91,043

Step by Step Solution

1. Step 1: Write the proportion equation
   60,900 : 91,043 = 91,043 : x
2. Step 2: Convert to fraction form
   60,900/91,043 = 91,043/x
3. Step 3: Cross multiply
   60,900x = 91,043 × 91,043
4. Step 4: Simplify right side
   60,900x = 8,288,827,849
5. Step 5: Solve for x
   x = 8,288,827,849/60,900
6. Step 6: Final answer
   x = 136,105.55