Finding the Third Proportional to 783,396 and 1,056,991.50

Step by Step Solution

1. Step 1: Write the proportion equation
   783,396 : 1,056,991.50 = 1,056,991.50 : x
2. Step 2: Convert to fraction form
   783,396/1,056,991.50 = 1,056,991.50/x
3. Step 3: Cross multiply
   783,396x = 1,056,991.50 × 1,056,991.50
4. Step 4: Simplify right side
   783,396x = 1,117,231,031,072.25
5. Step 5: Solve for x
   x = 1,117,231,031,072.25/783,396
6. Step 6: Final answer
   x = 1,426,138.29