Finding the Third Proportional to 40,768.31 and 64,858.22

Step by Step Solution

1. Step 1: Write the proportion equation
   40,768.31 : 64,858.22 = 64,858.22 : x
2. Step 2: Convert to fraction form
   40,768.31/64,858.22 = 64,858.22/x
3. Step 3: Cross multiply
   40,768.31x = 64,858.22 × 64,858.22
4. Step 4: Simplify right side
   40,768.31x = 4,206,588,539.42
5. Step 5: Solve for x
   x = 4,206,588,539.42/40,768.31
6. Step 6: Final answer
   x = 103,182.80