Finding the Third Proportional to 96,810 and 209,710.50

Step by Step Solution

1. Step 1: Write the proportion equation
   96,810 : 209,710.50 = 209,710.50 : x
2. Step 2: Convert to fraction form
   96,810/209,710.50 = 209,710.50/x
3. Step 3: Cross multiply
   96,810x = 209,710.50 × 209,710.50
4. Step 4: Simplify right side
   96,810x = 43,978,493,810.25
5. Step 5: Solve for x
   x = 43,978,493,810.25/96,810
6. Step 6: Final answer
   x = 454,276.35