Finding the Third Proportional to 56,412 and 131,838

Step by Step Solution

1. Step 1: Write the proportion equation
   56,412 : 131,838 = 131,838 : x
2. Step 2: Convert to fraction form
   56,412/131,838 = 131,838/x
3. Step 3: Cross multiply
   56,412x = 131,838 × 131,838
4. Step 4: Simplify right side
   56,412x = 17,381,258,244
5. Step 5: Solve for x
   x = 17,381,258,244/56,412
6. Step 6: Final answer
   x = 308,112.78