Finding the Third Proportional to 264,563 and 624,409.50

Step by Step Solution

1. Step 1: Write the proportion equation
   264,563 : 624,409.50 = 624,409.50 : x
2. Step 2: Convert to fraction form
   264,563/624,409.50 = 624,409.50/x
3. Step 3: Cross multiply
   264,563x = 624,409.50 × 624,409.50
4. Step 4: Simplify right side
   264,563x = 389,887,223,690.25
5. Step 5: Solve for x
   x = 389,887,223,690.25/264,563
6. Step 6: Final answer
   x = 1,473,702.76