Finding the Third Proportional to 260,941.50 and 403,200

Step by Step Solution

1. Step 1: Write the proportion equation
   260,941.50 : 403,200 = 403,200 : x
2. Step 2: Convert to fraction form
   260,941.50/403,200 = 403,200/x
3. Step 3: Cross multiply
   260,941.50x = 403,200 × 403,200
4. Step 4: Simplify right side
   260,941.50x = 162,570,240,000
5. Step 5: Solve for x
   x = 162,570,240,000/260,941.50
6. Step 6: Final answer
   x = 623,014.12