Finding the Third Proportional to 40,090 and 59,072

Step by Step Solution

1. Step 1: Write the proportion equation
   40,090 : 59,072 = 59,072 : x
2. Step 2: Convert to fraction form
   40,090/59,072 = 59,072/x
3. Step 3: Cross multiply
   40,090x = 59,072 × 59,072
4. Step 4: Simplify right side
   40,090x = 3,489,501,184
5. Step 5: Solve for x
   x = 3,489,501,184/40,090
6. Step 6: Final answer
   x = 87,041.69