Finding the Third Proportional to 72,905.70 and 97,979.31

Step by Step Solution

1. Step 1: Write the proportion equation
   72,905.70 : 97,979.31 = 97,979.31 : x
2. Step 2: Convert to fraction form
   72,905.70/97,979.31 = 97,979.31/x
3. Step 3: Cross multiply
   72,905.70x = 97,979.31 × 97,979.31
4. Step 4: Simplify right side
   72,905.70x = 9,599,944,912.51
5. Step 5: Solve for x
   x = 9,599,944,912.51/72,905.70
6. Step 6: Final answer
   x = 131,676.20