Finding the Third Proportional to 3,686,896 and 7,520,172

Step by Step Solution

1. Step 1: Write the proportion equation
   3,686,896 : 7,520,172 = 7,520,172 : x
2. Step 2: Convert to fraction form
   3,686,896/7,520,172 = 7,520,172/x
3. Step 3: Cross multiply
   3,686,896x = 7,520,172 × 7,520,172
4. Step 4: Simplify right side
   3,686,896x = 56,552,986,909,584
5. Step 5: Solve for x
   x = 56,552,986,909,584/3,686,896
6. Step 6: Final answer
   x = 15,338,915.69