Finding the Third Proportional to 357,804 and 501,511.50

Step by Step Solution

1. Step 1: Write the proportion equation
   357,804 : 501,511.50 = 501,511.50 : x
2. Step 2: Convert to fraction form
   357,804/501,511.50 = 501,511.50/x
3. Step 3: Cross multiply
   357,804x = 501,511.50 × 501,511.50
4. Step 4: Simplify right side
   357,804x = 251,513,784,632.25
5. Step 5: Solve for x
   x = 251,513,784,632.25/357,804
6. Step 6: Final answer
   x = 702,937.32