Finding the Third Proportional to 292,294 and 637,485.50

Step by Step Solution

1. Step 1: Write the proportion equation
   292,294 : 637,485.50 = 637,485.50 : x
2. Step 2: Convert to fraction form
   292,294/637,485.50 = 637,485.50/x
3. Step 3: Cross multiply
   292,294x = 637,485.50 × 637,485.50
4. Step 4: Simplify right side
   292,294x = 406,387,762,710.25
5. Step 5: Solve for x
   x = 406,387,762,710.25/292,294
6. Step 6: Final answer
   x = 1,390,339.05