Finding the Third Proportional to 67,818 and 147,030

Step by Step Solution

1. Step 1: Write the proportion equation
   67,818 : 147,030 = 147,030 : x
2. Step 2: Convert to fraction form
   67,818/147,030 = 147,030/x
3. Step 3: Cross multiply
   67,818x = 147,030 × 147,030
4. Step 4: Simplify right side
   67,818x = 21,617,820,900
5. Step 5: Solve for x
   x = 21,617,820,900/67,818
6. Step 6: Final answer
   x = 318,762.29