Finding the Third Proportional to 357,553.50 and 530,146.50

Step by Step Solution

1. Step 1: Write the proportion equation
   357,553.50 : 530,146.50 = 530,146.50 : x
2. Step 2: Convert to fraction form
   357,553.50/530,146.50 = 530,146.50/x
3. Step 3: Cross multiply
   357,553.50x = 530,146.50 × 530,146.50
4. Step 4: Simplify right side
   357,553.50x = 281,055,311,462.25
5. Step 5: Solve for x
   x = 281,055,311,462.25/357,553.50
6. Step 6: Final answer
   x = 786,051.07