Finding the Third Proportional to 42,236.44 and 56,887.31

Step by Step Solution

1. Step 1: Write the proportion equation
   42,236.44 : 56,887.31 = 56,887.31 : x
2. Step 2: Convert to fraction form
   42,236.44/56,887.31 = 56,887.31/x
3. Step 3: Cross multiply
   42,236.44x = 56,887.31 × 56,887.31
4. Step 4: Simplify right side
   42,236.44x = 3,236,166,323.47
5. Step 5: Solve for x
   x = 3,236,166,323.47/42,236.44
6. Step 6: Final answer
   x = 76,620.25