Finding the Third Proportional to 46,690 and 99,940

Step by Step Solution

1. Step 1: Write the proportion equation
   46,690 : 99,940 = 99,940 : x
2. Step 2: Convert to fraction form
   46,690/99,940 = 99,940/x
3. Step 3: Cross multiply
   46,690x = 99,940 × 99,940
4. Step 4: Simplify right side
   46,690x = 9,988,003,600
5. Step 5: Solve for x
   x = 9,988,003,600/46,690
6. Step 6: Final answer
   x = 213,921.69