Finding the Third Proportional to 2,602,485 and 5,639,329

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602,485 : 5,639,329 = 5,639,329 : x
2. Step 2: Convert to fraction form
   2,602,485/5,639,329 = 5,639,329/x
3. Step 3: Cross multiply
   2,602,485x = 5,639,329 × 5,639,329
4. Step 4: Simplify right side
   2,602,485x = 31,802,031,570,241
5. Step 5: Solve for x
   x = 31,802,031,570,241/2,602,485
6. Step 6: Final answer
   x = 12,219,871.23