Finding the Third Proportional to 42,246.56 and 65,392.31

Step by Step Solution

1. Step 1: Write the proportion equation
   42,246.56 : 65,392.31 = 65,392.31 : x
2. Step 2: Convert to fraction form
   42,246.56/65,392.31 = 65,392.31/x
3. Step 3: Cross multiply
   42,246.56x = 65,392.31 × 65,392.31
4. Step 4: Simplify right side
   42,246.56x = 4,276,154,534.10
5. Step 5: Solve for x
   x = 4,276,154,534.10/42,246.56
6. Step 6: Final answer
   x = 101,218.99