Finding the Third Proportional to 299,700 and 637,537.50

Step by Step Solution

1. Step 1: Write the proportion equation
   299,700 : 637,537.50 = 637,537.50 : x
2. Step 2: Convert to fraction form
   299,700/637,537.50 = 637,537.50/x
3. Step 3: Cross multiply
   299,700x = 637,537.50 × 637,537.50
4. Step 4: Simplify right side
   299,700x = 406,454,063,906.25
5. Step 5: Solve for x
   x = 406,454,063,906.25/299,700
6. Step 6: Final answer
   x = 1,356,203.08