Finding the Third Proportional to 1,056,213 and 2,280,789

Step by Step Solution

1. Step 1: Write the proportion equation
   1,056,213 : 2,280,789 = 2,280,789 : x
2. Step 2: Convert to fraction form
   1,056,213/2,280,789 = 2,280,789/x
3. Step 3: Cross multiply
   1,056,213x = 2,280,789 × 2,280,789
4. Step 4: Simplify right side
   1,056,213x = 5,201,998,462,521
5. Step 5: Solve for x
   x = 5,201,998,462,521/1,056,213
6. Step 6: Final answer
   x = 4,925,141.48