Finding the Third Proportional to 651,257 and 1,388,536

Step by Step Solution

1. Step 1: Write the proportion equation
   651,257 : 1,388,536 = 1,388,536 : x
2. Step 2: Convert to fraction form
   651,257/1,388,536 = 1,388,536/x
3. Step 3: Cross multiply
   651,257x = 1,388,536 × 1,388,536
4. Step 4: Simplify right side
   651,257x = 1,928,032,223,296
5. Step 5: Solve for x
   x = 1,928,032,223,296/651,257
6. Step 6: Final answer
   x = 2,960,478.31