Finding the Third Proportional to 123,383,887,158 and 268,672,050,520

Step by Step Solution

1. Step 1: Write the proportion equation
   123,383,887,158 : 268,672,050,520 = 268,672,050,520 : x
2. Step 2: Convert to fraction form
   123,383,887,158/268,672,050,520 = 268,672,050,520/x
3. Step 3: Cross multiply
   123,383,887,158x = 268,672,050,520 × 268,672,050,520
4. Step 4: Simplify right side
   123,383,887,158x = 72,184,670,730,621,435,248,640
5. Step 5: Solve for x
   x = 72,184,670,730,621,435,248,640/123,383,887,158
6. Step 6: Final answer
   x = 585,041,308,012.81