Finding the Third Proportional to 140,884 and 208,998

Step by Step Solution

1. Step 1: Write the proportion equation
   140,884 : 208,998 = 208,998 : x
2. Step 2: Convert to fraction form
   140,884/208,998 = 208,998/x
3. Step 3: Cross multiply
   140,884x = 208,998 × 208,998
4. Step 4: Simplify right side
   140,884x = 43,680,164,004
5. Step 5: Solve for x
   x = 43,680,164,004/140,884
6. Step 6: Final answer
   x = 310,043.47