Finding the Third Proportional to 143,012 and 307,948

Step by Step Solution

1. Step 1: Write the proportion equation
   143,012 : 307,948 = 307,948 : x
2. Step 2: Convert to fraction form
   143,012/307,948 = 307,948/x
3. Step 3: Cross multiply
   143,012x = 307,948 × 307,948
4. Step 4: Simplify right side
   143,012x = 94,831,970,704
5. Step 5: Solve for x
   x = 94,831,970,704/143,012
6. Step 6: Final answer
   x = 663,104.99