Finding the Third Proportional to 42,290.44 and 61,436.81

Step by Step Solution

1. Step 1: Write the proportion equation
   42,290.44 : 61,436.81 = 61,436.81 : x
2. Step 2: Convert to fraction form
   42,290.44/61,436.81 = 61,436.81/x
3. Step 3: Cross multiply
   42,290.44x = 61,436.81 × 61,436.81
4. Step 4: Simplify right side
   42,290.44x = 3,774,481,930.16
5. Step 5: Solve for x
   x = 3,774,481,930.16/42,290.44
6. Step 6: Final answer
   x = 89,251.43