Finding the Third Proportional to 10,490.77 and 20,446.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,490.77 : 20,446.17 = 20,446.17 : x
2. Step 2: Convert to fraction form
   10,490.77/20,446.17 = 20,446.17/x
3. Step 3: Cross multiply
   10,490.77x = 20,446.17 × 20,446.17
4. Step 4: Simplify right side
   10,490.77x = 418,045,944.34
5. Step 5: Solve for x
   x = 418,045,944.34/10,490.77
6. Step 6: Final answer
   x = 39,848.95