Finding the Third Proportional to 210,360 and 462,789.50

Step by Step Solution

1. Step 1: Write the proportion equation
   210,360 : 462,789.50 = 462,789.50 : x
2. Step 2: Convert to fraction form
   210,360/462,789.50 = 462,789.50/x
3. Step 3: Cross multiply
   210,360x = 462,789.50 × 462,789.50
4. Step 4: Simplify right side
   210,360x = 214,174,121,310.25
5. Step 5: Solve for x
   x = 214,174,121,310.25/210,360
6. Step 6: Final answer
   x = 1,018,131.40