Finding the Third Proportional to 13,315,054 and 28,686,986

Step by Step Solution

1. Step 1: Write the proportion equation
   13,315,054 : 28,686,986 = 28,686,986 : x
2. Step 2: Convert to fraction form
   13,315,054/28,686,986 = 28,686,986/x
3. Step 3: Cross multiply
   13,315,054x = 28,686,986 × 28,686,986
4. Step 4: Simplify right side
   13,315,054x = 822,943,165,764,196
5. Step 5: Solve for x
   x = 822,943,165,764,196/13,315,054
6. Step 6: Final answer
   x = 61,805,469.64