Finding the Third Proportional to 59,210 and 90,030

Step by Step Solution

1. Step 1: Write the proportion equation
   59,210 : 90,030 = 90,030 : x
2. Step 2: Convert to fraction form
   59,210/90,030 = 90,030/x
3. Step 3: Cross multiply
   59,210x = 90,030 × 90,030
4. Step 4: Simplify right side
   59,210x = 8,105,400,900
5. Step 5: Solve for x
   x = 8,105,400,900/59,210
6. Step 6: Final answer
   x = 136,892.43