Finding the Third Proportional to 123,401,673,813 and 250,273,121,850

Step by Step Solution

1. Step 1: Write the proportion equation
   123,401,673,813 : 250,273,121,850 = 250,273,121,850 : x
2. Step 2: Convert to fraction form
   123,401,673,813/250,273,121,850 = 250,273,121,850/x
3. Step 3: Cross multiply
   123,401,673,813x = 250,273,121,850 × 250,273,121,850
4. Step 4: Simplify right side
   123,401,673,813x = 62,636,635,520,544,943,374,336
5. Step 5: Solve for x
   x = 62,636,635,520,544,943,374,336/123,401,673,813
6. Step 6: Final answer
   x = 507,583,354,302.50