Finding the Third Proportional to 80,723,968 and 172,210,892

Step by Step Solution

1. Step 1: Write the proportion equation
   80,723,968 : 172,210,892 = 172,210,892 : x
2. Step 2: Convert to fraction form
   80,723,968/172,210,892 = 172,210,892/x
3. Step 3: Cross multiply
   80,723,968x = 172,210,892 × 172,210,892
4. Step 4: Simplify right side
   80,723,968x = 29,656,591,323,435,664
5. Step 5: Solve for x
   x = 29,656,591,323,435,664/80,723,968
6. Step 6: Final answer
   x = 367,382,724.84