Finding the Third Proportional to 143,408 and 210,032

Step by Step Solution

1. Step 1: Write the proportion equation
   143,408 : 210,032 = 210,032 : x
2. Step 2: Convert to fraction form
   143,408/210,032 = 210,032/x
3. Step 3: Cross multiply
   143,408x = 210,032 × 210,032
4. Step 4: Simplify right side
   143,408x = 44,113,441,024
5. Step 5: Solve for x
   x = 44,113,441,024/143,408
6. Step 6: Final answer
   x = 307,607.95