Finding the Third Proportional to 36,620,072 and 55,401,420

Step by Step Solution

1. Step 1: Write the proportion equation
   36,620,072 : 55,401,420 = 55,401,420 : x
2. Step 2: Convert to fraction form
   36,620,072/55,401,420 = 55,401,420/x
3. Step 3: Cross multiply
   36,620,072x = 55,401,420 × 55,401,420
4. Step 4: Simplify right side
   36,620,072x = 3,069,317,338,016,400
5. Step 5: Solve for x
   x = 3,069,317,338,016,400/36,620,072
6. Step 6: Final answer
   x = 83,815,163.94