Finding the Third Proportional to 564,553 and 804,790.50

Step by Step Solution

1. Step 1: Write the proportion equation
   564,553 : 804,790.50 = 804,790.50 : x
2. Step 2: Convert to fraction form
   564,553/804,790.50 = 804,790.50/x
3. Step 3: Cross multiply
   564,553x = 804,790.50 × 804,790.50
4. Step 4: Simplify right side
   564,553x = 647,687,748,890.25
5. Step 5: Solve for x
   x = 647,687,748,890.25/564,553
6. Step 6: Final answer
   x = 1,147,257.65