Finding the Third Proportional to 1,210,896 and 2,631,392

Step by Step Solution

1. Step 1: Write the proportion equation
   1,210,896 : 2,631,392 = 2,631,392 : x
2. Step 2: Convert to fraction form
   1,210,896/2,631,392 = 2,631,392/x
3. Step 3: Cross multiply
   1,210,896x = 2,631,392 × 2,631,392
4. Step 4: Simplify right side
   1,210,896x = 6,924,223,857,664
5. Step 5: Solve for x
   x = 6,924,223,857,664/1,210,896
6. Step 6: Final answer
   x = 5,718,264.70