Finding the Third Proportional to 56,872 and 132,905.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,872 : 132,905.50 = 132,905.50 : x
2. Step 2: Convert to fraction form
   56,872/132,905.50 = 132,905.50/x
3. Step 3: Cross multiply
   56,872x = 132,905.50 × 132,905.50
4. Step 4: Simplify right side
   56,872x = 17,663,871,930.25
5. Step 5: Solve for x
   x = 17,663,871,930.25/56,872
6. Step 6: Final answer
   x = 310,589.96