Finding the Third Proportional to 31,616.58 and 42,088.36

Step by Step Solution

1. Step 1: Write the proportion equation
   31,616.58 : 42,088.36 = 42,088.36 : x
2. Step 2: Convert to fraction form
   31,616.58/42,088.36 = 42,088.36/x
3. Step 3: Cross multiply
   31,616.58x = 42,088.36 × 42,088.36
4. Step 4: Simplify right side
   31,616.58x = 1,771,429,994.88
5. Step 5: Solve for x
   x = 1,771,429,994.88/31,616.58
6. Step 6: Final answer
   x = 56,028.52