Finding the Third Proportional to 151,254 and 317,988

Step by Step Solution

1. Step 1: Write the proportion equation
   151,254 : 317,988 = 317,988 : x
2. Step 2: Convert to fraction form
   151,254/317,988 = 317,988/x
3. Step 3: Cross multiply
   151,254x = 317,988 × 317,988
4. Step 4: Simplify right side
   151,254x = 101,116,368,144
5. Step 5: Solve for x
   x = 101,116,368,144/151,254
6. Step 6: Final answer
   x = 668,520.29