Finding the Third Proportional to 1,211,366 and 2,623,342

Step by Step Solution

1. Step 1: Write the proportion equation
   1,211,366 : 2,623,342 = 2,623,342 : x
2. Step 2: Convert to fraction form
   1,211,366/2,623,342 = 2,623,342/x
3. Step 3: Cross multiply
   1,211,366x = 2,623,342 × 2,623,342
4. Step 4: Simplify right side
   1,211,366x = 6,881,923,248,964
5. Step 5: Solve for x
   x = 6,881,923,248,964/1,211,366
6. Step 6: Final answer
   x = 5,681,126.31