Finding the Third Proportional to 3,639,086,848 and 5,200,349,931

Step by Step Solution

1. Step 1: Write the proportion equation
   3,639,086,848 : 5,200,349,931 = 5,200,349,931 : x
2. Step 2: Convert to fraction form
   3,639,086,848/5,200,349,931 = 5,200,349,931/x
3. Step 3: Cross multiply
   3,639,086,848x = 5,200,349,931 × 5,200,349,931
4. Step 4: Simplify right side
   3,639,086,848x = 27,043,639,404,851,703,808
5. Step 5: Solve for x
   x = 27,043,639,404,851,703,808/3,639,086,848
6. Step 6: Final answer
   x = 7,431,435,559.09