Finding the Third Proportional to 1,201,644 and 2,573,872

Step by Step Solution

1. Step 1: Write the proportion equation
   1,201,644 : 2,573,872 = 2,573,872 : x
2. Step 2: Convert to fraction form
   1,201,644/2,573,872 = 2,573,872/x
3. Step 3: Cross multiply
   1,201,644x = 2,573,872 × 2,573,872
4. Step 4: Simplify right side
   1,201,644x = 6,624,817,072,384
5. Step 5: Solve for x
   x = 6,624,817,072,384/1,201,644
6. Step 6: Final answer
   x = 5,513,127.91