Finding the Third Proportional to 104,305 and 214,139.50

Step by Step Solution

1. Step 1: Write the proportion equation
   104,305 : 214,139.50 = 214,139.50 : x
2. Step 2: Convert to fraction form
   104,305/214,139.50 = 214,139.50/x
3. Step 3: Cross multiply
   104,305x = 214,139.50 × 214,139.50
4. Step 4: Simplify right side
   104,305x = 45,855,725,460.25
5. Step 5: Solve for x
   x = 45,855,725,460.25/104,305
6. Step 6: Final answer
   x = 439,631.13