Finding the Third Proportional to 259,090 and 562,434.75

Step by Step Solution

1. Step 1: Write the proportion equation
   259,090 : 562,434.75 = 562,434.75 : x
2. Step 2: Convert to fraction form
   259,090/562,434.75 = 562,434.75/x
3. Step 3: Cross multiply
   259,090x = 562,434.75 × 562,434.75
4. Step 4: Simplify right side
   259,090x = 316,332,848,007.56
5. Step 5: Solve for x
   x = 316,332,848,007.56/259,090
6. Step 6: Final answer
   x = 1,220,938.08