Finding the Third Proportional to 153,705 and 325,650

Step by Step Solution

1. Step 1: Write the proportion equation
   153,705 : 325,650 = 325,650 : x
2. Step 2: Convert to fraction form
   153,705/325,650 = 325,650/x
3. Step 3: Cross multiply
   153,705x = 325,650 × 325,650
4. Step 4: Simplify right side
   153,705x = 106,047,922,500
5. Step 5: Solve for x
   x = 106,047,922,500/153,705
6. Step 6: Final answer
   x = 689,944.52