Finding the Third Proportional to 123,411,164 and 256,388,202

Step by Step Solution

1. Step 1: Write the proportion equation
   123,411,164 : 256,388,202 = 256,388,202 : x
2. Step 2: Convert to fraction form
   123,411,164/256,388,202 = 256,388,202/x
3. Step 3: Cross multiply
   123,411,164x = 256,388,202 × 256,388,202
4. Step 4: Simplify right side
   123,411,164x = 65,734,910,124,792,800
5. Step 5: Solve for x
   x = 65,734,910,124,792,800/123,411,164
6. Step 6: Final answer
   x = 532,649,624.18