Finding the Third Proportional to 521,688 and 1,099,410

Step by Step Solution

1. Step 1: Write the proportion equation
   521,688 : 1,099,410 = 1,099,410 : x
2. Step 2: Convert to fraction form
   521,688/1,099,410 = 1,099,410/x
3. Step 3: Cross multiply
   521,688x = 1,099,410 × 1,099,410
4. Step 4: Simplify right side
   521,688x = 1,208,702,348,100
5. Step 5: Solve for x
   x = 1,208,702,348,100/521,688
6. Step 6: Final answer
   x = 2,316,906.56