Finding the Third Proportional to 97,799.91 and 142,086.66

Step by Step Solution

1. Step 1: Write the proportion equation
   97,799.91 : 142,086.66 = 142,086.66 : x
2. Step 2: Convert to fraction form
   97,799.91/142,086.66 = 142,086.66/x
3. Step 3: Cross multiply
   97,799.91x = 142,086.66 × 142,086.66
4. Step 4: Simplify right side
   97,799.91x = 20,188,617,884.31
5. Step 5: Solve for x
   x = 20,188,617,884.31/97,799.91
6. Step 6: Final answer
   x = 206,427.78