Finding the Third Proportional to 38,290 and 58,840

Step by Step Solution

1. Step 1: Write the proportion equation
   38,290 : 58,840 = 58,840 : x
2. Step 2: Convert to fraction form
   38,290/58,840 = 58,840/x
3. Step 3: Cross multiply
   38,290x = 58,840 × 58,840
4. Step 4: Simplify right side
   38,290x = 3,462,145,600
5. Step 5: Solve for x
   x = 3,462,145,600/38,290
6. Step 6: Final answer
   x = 90,419.05