Finding the Third Proportional to 58,471 and 90,460

Step by Step Solution

1. Step 1: Write the proportion equation
   58,471 : 90,460 = 90,460 : x
2. Step 2: Convert to fraction form
   58,471/90,460 = 90,460/x
3. Step 3: Cross multiply
   58,471x = 90,460 × 90,460
4. Step 4: Simplify right side
   58,471x = 8,183,011,600
5. Step 5: Solve for x
   x = 8,183,011,600/58,471
6. Step 6: Final answer
   x = 139,949.92