Finding the Third Proportional to 5,585,370 and 8,538,435

Step by Step Solution

1. Step 1: Write the proportion equation
   5,585,370 : 8,538,435 = 8,538,435 : x
2. Step 2: Convert to fraction form
   5,585,370/8,538,435 = 8,538,435/x
3. Step 3: Cross multiply
   5,585,370x = 8,538,435 × 8,538,435
4. Step 4: Simplify right side
   5,585,370x = 72,904,872,249,225
5. Step 5: Solve for x
   x = 72,904,872,249,225/5,585,370
6. Step 6: Final answer
   x = 13,052,827.70