Finding the Third Proportional to 67,536,396 and 137,457,540

Step by Step Solution

1. Step 1: Write the proportion equation
   67,536,396 : 137,457,540 = 137,457,540 : x
2. Step 2: Convert to fraction form
   67,536,396/137,457,540 = 137,457,540/x
3. Step 3: Cross multiply
   67,536,396x = 137,457,540 × 137,457,540
4. Step 4: Simplify right side
   67,536,396x = 18,894,575,302,851,600
5. Step 5: Solve for x
   x = 18,894,575,302,851,600/67,536,396
6. Step 6: Final answer
   x = 279,768,782.79