Finding the Third Proportional to 1,369,818 and 2,181,573

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369,818 : 2,181,573 = 2,181,573 : x
2. Step 2: Convert to fraction form
   1,369,818/2,181,573 = 2,181,573/x
3. Step 3: Cross multiply
   1,369,818x = 2,181,573 × 2,181,573
4. Step 4: Simplify right side
   1,369,818x = 4,759,260,754,329
5. Step 5: Solve for x
   x = 4,759,260,754,329/1,369,818
6. Step 6: Final answer
   x = 3,474,374.52