Finding the Third Proportional to 289,737 and 635,485.50

Step by Step Solution

1. Step 1: Write the proportion equation
   289,737 : 635,485.50 = 635,485.50 : x
2. Step 2: Convert to fraction form
   289,737/635,485.50 = 635,485.50/x
3. Step 3: Cross multiply
   289,737x = 635,485.50 × 635,485.50
4. Step 4: Simplify right side
   289,737x = 403,841,820,710.25
5. Step 5: Solve for x
   x = 403,841,820,710.25/289,737
6. Step 6: Final answer
   x = 1,393,822.05