Finding the Third Proportional to 2,640,665.81 and 5,630,123.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,640,665.81 : 5,630,123.95 = 5,630,123.95 : x
2. Step 2: Convert to fraction form
   2,640,665.81/5,630,123.95 = 5,630,123.95/x
3. Step 3: Cross multiply
   2,640,665.81x = 5,630,123.95 × 5,630,123.95
4. Step 4: Simplify right side
   2,640,665.81x = 31,698,295,727,551.88
5. Step 5: Solve for x
   x = 31,698,295,727,551.88/2,640,665.81
6. Step 6: Final answer
   x = 12,003,902.80