Finding the Third Proportional to 690,581 and 1,509,250

Step by Step Solution

1. Step 1: Write the proportion equation
   690,581 : 1,509,250 = 1,509,250 : x
2. Step 2: Convert to fraction form
   690,581/1,509,250 = 1,509,250/x
3. Step 3: Cross multiply
   690,581x = 1,509,250 × 1,509,250
4. Step 4: Simplify right side
   690,581x = 2,277,835,562,500
5. Step 5: Solve for x
   x = 2,277,835,562,500/690,581
6. Step 6: Final answer
   x = 3,298,433.58