Finding the Third Proportional to 67,194,587,019 and 143,973,564,292.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,194,587,019 : 143,973,564,292.50 = 143,973,564,292.50 : x
2. Step 2: Convert to fraction form
   67,194,587,019/143,973,564,292.50 = 143,973,564,292.50/x
3. Step 3: Cross multiply
   67,194,587,019x = 143,973,564,292.50 × 143,973,564,292.50
4. Step 4: Simplify right side
   67,194,587,019x = 20,728,387,215,086,632,042,496
5. Step 5: Solve for x
   x = 20,728,387,215,086,632,042,496/67,194,587,019
6. Step 6: Final answer
   x = 308,482,991,483.01