Finding the Third Proportional to 302,829 and 637,009.50

Step by Step Solution

1. Step 1: Write the proportion equation
   302,829 : 637,009.50 = 637,009.50 : x
2. Step 2: Convert to fraction form
   302,829/637,009.50 = 637,009.50/x
3. Step 3: Cross multiply
   302,829x = 637,009.50 × 637,009.50
4. Step 4: Simplify right side
   302,829x = 405,781,103,090.25
5. Step 5: Solve for x
   x = 405,781,103,090.25/302,829
6. Step 6: Final answer
   x = 1,339,967.78