Finding the Third Proportional to 143,008 and 307,940

Step by Step Solution

1. Step 1: Write the proportion equation
   143,008 : 307,940 = 307,940 : x
2. Step 2: Convert to fraction form
   143,008/307,940 = 307,940/x
3. Step 3: Cross multiply
   143,008x = 307,940 × 307,940
4. Step 4: Simplify right side
   143,008x = 94,827,043,600
5. Step 5: Solve for x
   x = 94,827,043,600/143,008
6. Step 6: Final answer
   x = 663,089.08