Finding the Third Proportional to 123,672,536 and 268,655,200

Step by Step Solution

1. Step 1: Write the proportion equation
   123,672,536 : 268,655,200 = 268,655,200 : x
2. Step 2: Convert to fraction form
   123,672,536/268,655,200 = 268,655,200/x
3. Step 3: Cross multiply
   123,672,536x = 268,655,200 × 268,655,200
4. Step 4: Simplify right side
   123,672,536x = 72,175,616,487,040,000
5. Step 5: Solve for x
   x = 72,175,616,487,040,000/123,672,536
6. Step 6: Final answer
   x = 583,602,623.68