Finding the Third Proportional to 5,272,326 and 8,439,156

Step by Step Solution

1. Step 1: Write the proportion equation
   5,272,326 : 8,439,156 = 8,439,156 : x
2. Step 2: Convert to fraction form
   5,272,326/8,439,156 = 8,439,156/x
3. Step 3: Cross multiply
   5,272,326x = 8,439,156 × 8,439,156
4. Step 4: Simplify right side
   5,272,326x = 71,219,353,992,336
5. Step 5: Solve for x
   x = 71,219,353,992,336/5,272,326
6. Step 6: Final answer
   x = 13,508,146.88