Finding the Third Proportional to 72,009 and 113,931

Step by Step Solution

1. Step 1: Write the proportion equation
   72,009 : 113,931 = 113,931 : x
2. Step 2: Convert to fraction form
   72,009/113,931 = 113,931/x
3. Step 3: Cross multiply
   72,009x = 113,931 × 113,931
4. Step 4: Simplify right side
   72,009x = 12,980,272,761
5. Step 5: Solve for x
   x = 12,980,272,761/72,009
6. Step 6: Final answer
   x = 180,259.03