Finding the Third Proportional to 521,607 and 1,259,181

Step by Step Solution

1. Step 1: Write the proportion equation
   521,607 : 1,259,181 = 1,259,181 : x
2. Step 2: Convert to fraction form
   521,607/1,259,181 = 1,259,181/x
3. Step 3: Cross multiply
   521,607x = 1,259,181 × 1,259,181
4. Step 4: Simplify right side
   521,607x = 1,585,536,790,761
5. Step 5: Solve for x
   x = 1,585,536,790,761/521,607
6. Step 6: Final answer
   x = 3,039,715.32