Finding the Third Proportional to 42,427.13 and 58,443.19

Step by Step Solution

1. Step 1: Write the proportion equation
   42,427.13 : 58,443.19 = 58,443.19 : x
2. Step 2: Convert to fraction form
   42,427.13/58,443.19 = 58,443.19/x
3. Step 3: Cross multiply
   42,427.13x = 58,443.19 × 58,443.19
4. Step 4: Simplify right side
   42,427.13x = 3,415,606,165.16
5. Step 5: Solve for x
   x = 3,415,606,165.16/42,427.13
6. Step 6: Final answer
   x = 80,505.25