Finding the Third Proportional to 5,585,364 and 8,538,426

Step by Step Solution

1. Step 1: Write the proportion equation
   5,585,364 : 8,538,426 = 8,538,426 : x
2. Step 2: Convert to fraction form
   5,585,364/8,538,426 = 8,538,426/x
3. Step 3: Cross multiply
   5,585,364x = 8,538,426 × 8,538,426
4. Step 4: Simplify right side
   5,585,364x = 72,904,718,557,476
5. Step 5: Solve for x
   x = 72,904,718,557,476/5,585,364
6. Step 6: Final answer
   x = 13,052,814.20