Finding the Third Proportional to 784,713 and 1,212,061.50

Step by Step Solution

1. Step 1: Write the proportion equation
   784,713 : 1,212,061.50 = 1,212,061.50 : x
2. Step 2: Convert to fraction form
   784,713/1,212,061.50 = 1,212,061.50/x
3. Step 3: Cross multiply
   784,713x = 1,212,061.50 × 1,212,061.50
4. Step 4: Simplify right side
   784,713x = 1,469,093,079,782.25
5. Step 5: Solve for x
   x = 1,469,093,079,782.25/784,713
6. Step 6: Final answer
   x = 1,872,140.62