Finding the Third Proportional to 357,558 and 530,150

Step by Step Solution

1. Step 1: Write the proportion equation
   357,558 : 530,150 = 530,150 : x
2. Step 2: Convert to fraction form
   357,558/530,150 = 530,150/x
3. Step 3: Cross multiply
   357,558x = 530,150 × 530,150
4. Step 4: Simplify right side
   357,558x = 281,059,022,500
5. Step 5: Solve for x
   x = 281,059,022,500/357,558
6. Step 6: Final answer
   x = 786,051.56