Finding the Third Proportional to 561,105 and 1,210,783.50

Step by Step Solution

1. Step 1: Write the proportion equation
   561,105 : 1,210,783.50 = 1,210,783.50 : x
2. Step 2: Convert to fraction form
   561,105/1,210,783.50 = 1,210,783.50/x
3. Step 3: Cross multiply
   561,105x = 1,210,783.50 × 1,210,783.50
4. Step 4: Simplify right side
   561,105x = 1,465,996,683,872.25
5. Step 5: Solve for x
   x = 1,465,996,683,872.25/561,105
6. Step 6: Final answer
   x = 2,612,695.81