Finding the Third Proportional to 1,209,312 and 2,636,352

Step by Step Solution

1. Step 1: Write the proportion equation
   1,209,312 : 2,636,352 = 2,636,352 : x
2. Step 2: Convert to fraction form
   1,209,312/2,636,352 = 2,636,352/x
3. Step 3: Cross multiply
   1,209,312x = 2,636,352 × 2,636,352
4. Step 4: Simplify right side
   1,209,312x = 6,950,351,867,904
5. Step 5: Solve for x
   x = 6,950,351,867,904/1,209,312
6. Step 6: Final answer
   x = 5,747,360.37