Finding the Third Proportional to 6,543,520 and 9,992,426

Step by Step Solution

1. Step 1: Write the proportion equation
   6,543,520 : 9,992,426 = 9,992,426 : x
2. Step 2: Convert to fraction form
   6,543,520/9,992,426 = 9,992,426/x
3. Step 3: Cross multiply
   6,543,520x = 9,992,426 × 9,992,426
4. Step 4: Simplify right side
   6,543,520x = 99,848,577,365,476
5. Step 5: Solve for x
   x = 99,848,577,365,476/6,543,520
6. Step 6: Final answer
   x = 15,259,153.69