Finding the Third Proportional to 120,097,249 and 262,216,128

Step by Step Solution

1. Step 1: Write the proportion equation
   120,097,249 : 262,216,128 = 262,216,128 : x
2. Step 2: Convert to fraction form
   120,097,249/262,216,128 = 262,216,128/x
3. Step 3: Cross multiply
   120,097,249x = 262,216,128 × 262,216,128
4. Step 4: Simplify right side
   120,097,249x = 68,757,297,783,312,384
5. Step 5: Solve for x
   x = 68,757,297,783,312,384/120,097,249
6. Step 6: Final answer
   x = 572,513,511.81