Finding the Third Proportional to 67,290 and 141,547.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,290 : 141,547.50 = 141,547.50 : x
2. Step 2: Convert to fraction form
   67,290/141,547.50 = 141,547.50/x
3. Step 3: Cross multiply
   67,290x = 141,547.50 × 141,547.50
4. Step 4: Simplify right side
   67,290x = 20,035,694,756.25
5. Step 5: Solve for x
   x = 20,035,694,756.25/67,290
6. Step 6: Final answer
   x = 297,751.45