Finding the Third Proportional to 5,483,878 and 8,538,153

Step by Step Solution

1. Step 1: Write the proportion equation
   5,483,878 : 8,538,153 = 8,538,153 : x
2. Step 2: Convert to fraction form
   5,483,878/8,538,153 = 8,538,153/x
3. Step 3: Cross multiply
   5,483,878x = 8,538,153 × 8,538,153
4. Step 4: Simplify right side
   5,483,878x = 72,900,056,651,409
5. Step 5: Solve for x
   x = 72,900,056,651,409/5,483,878
6. Step 6: Final answer
   x = 13,293,522.70