Finding the Third Proportional to 13,987,872,850.50 and 30,426,568,911

Step by Step Solution

1. Step 1: Write the proportion equation
   13,987,872,850.50 : 30,426,568,911 = 30,426,568,911 : x
2. Step 2: Convert to fraction form
   13,987,872,850.50/30,426,568,911 = 30,426,568,911/x
3. Step 3: Cross multiply
   13,987,872,850.50x = 30,426,568,911 × 30,426,568,911
4. Step 4: Simplify right side
   13,987,872,850.50x = 925,776,095,695,831,695,360
5. Step 5: Solve for x
   x = 925,776,095,695,831,695,360/13,987,872,850.50
6. Step 6: Final answer
   x = 66,184,194,379.69