Finding the Third Proportional to 42,262.31 and 65,405.53

Step by Step Solution

1. Step 1: Write the proportion equation
   42,262.31 : 65,405.53 = 65,405.53 : x
2. Step 2: Convert to fraction form
   42,262.31/65,405.53 = 65,405.53/x
3. Step 3: Cross multiply
   42,262.31x = 65,405.53 × 65,405.53
4. Step 4: Simplify right side
   42,262.31x = 4,277,883,518.09
5. Step 5: Solve for x
   x = 4,277,883,518.09/42,262.31
6. Step 6: Final answer
   x = 101,222.18