Finding the Third Proportional to 67,488.84 and 147,689.20

Step by Step Solution

1. Step 1: Write the proportion equation
   67,488.84 : 147,689.20 = 147,689.20 : x
2. Step 2: Convert to fraction form
   67,488.84/147,689.20 = 147,689.20/x
3. Step 3: Cross multiply
   67,488.84x = 147,689.20 × 147,689.20
4. Step 4: Simplify right side
   67,488.84x = 21,812,100,719.70
5. Step 5: Solve for x
   x = 21,812,100,719.70/67,488.84
6. Step 6: Final answer
   x = 323,195.65