Finding the Third Proportional to 27,641.81 and 42,490.69

Step by Step Solution

1. Step 1: Write the proportion equation
   27,641.81 : 42,490.69 = 42,490.69 : x
2. Step 2: Convert to fraction form
   27,641.81/42,490.69 = 42,490.69/x
3. Step 3: Cross multiply
   27,641.81x = 42,490.69 × 42,490.69
4. Step 4: Simplify right side
   27,641.81x = 1,805,458,524.22
5. Step 5: Solve for x
   x = 1,805,458,524.22/27,641.81
6. Step 6: Final answer
   x = 65,316.21