Finding the Third Proportional to 67,528,840 and 137,444,188

Step by Step Solution

1. Step 1: Write the proportion equation
   67,528,840 : 137,444,188 = 137,444,188 : x
2. Step 2: Convert to fraction form
   67,528,840/137,444,188 = 137,444,188/x
3. Step 3: Cross multiply
   67,528,840x = 137,444,188 × 137,444,188
4. Step 4: Simplify right side
   67,528,840x = 18,890,904,814,979,344
5. Step 5: Solve for x
   x = 18,890,904,814,979,344/67,528,840
6. Step 6: Final answer
   x = 279,745,732.56