Finding the Third Proportional to 2,105,428.25 and 4,630,664.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105,428.25 : 4,630,664.50 = 4,630,664.50 : x
2. Step 2: Convert to fraction form
   2,105,428.25/4,630,664.50 = 4,630,664.50/x
3. Step 3: Cross multiply
   2,105,428.25x = 4,630,664.50 × 4,630,664.50
4. Step 4: Simplify right side
   2,105,428.25x = 21,443,053,711,560.25
5. Step 5: Solve for x
   x = 21,443,053,711,560.25/2,105,428.25
6. Step 6: Final answer
   x = 10,184,651.85