Finding the Third Proportional to 43,212 and 57,432

Step by Step Solution

1. Step 1: Write the proportion equation
   43,212 : 57,432 = 57,432 : x
2. Step 2: Convert to fraction form
   43,212/57,432 = 57,432/x
3. Step 3: Cross multiply
   43,212x = 57,432 × 57,432
4. Step 4: Simplify right side
   43,212x = 3,298,434,624
5. Step 5: Solve for x
   x = 3,298,434,624/43,212
6. Step 6: Final answer
   x = 76,331.45