Finding the Third Proportional to 141,909 and 213,460.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,909 : 213,460.50 = 213,460.50 : x
2. Step 2: Convert to fraction form
   141,909/213,460.50 = 213,460.50/x
3. Step 3: Cross multiply
   141,909x = 213,460.50 × 213,460.50
4. Step 4: Simplify right side
   141,909x = 45,565,385,060.25
5. Step 5: Solve for x
   x = 45,565,385,060.25/141,909
6. Step 6: Final answer
   x = 321,088.76