Finding the Third Proportional to 140,362 and 215,749

Step by Step Solution

1. Step 1: Write the proportion equation
   140,362 : 215,749 = 215,749 : x
2. Step 2: Convert to fraction form
   140,362/215,749 = 215,749/x
3. Step 3: Cross multiply
   140,362x = 215,749 × 215,749
4. Step 4: Simplify right side
   140,362x = 46,547,631,001
5. Step 5: Solve for x
   x = 46,547,631,001/140,362
6. Step 6: Final answer
   x = 331,625.59