Finding the Third Proportional to 243,705 and 326,002.50

Step by Step Solution

1. Step 1: Write the proportion equation
   243,705 : 326,002.50 = 326,002.50 : x
2. Step 2: Convert to fraction form
   243,705/326,002.50 = 326,002.50/x
3. Step 3: Cross multiply
   243,705x = 326,002.50 × 326,002.50
4. Step 4: Simplify right side
   243,705x = 106,277,630,006.25
5. Step 5: Solve for x
   x = 106,277,630,006.25/243,705
6. Step 6: Final answer
   x = 436,091.30