Finding the Third Proportional to 520,652 and 804,573.50

Step by Step Solution

1. Step 1: Write the proportion equation
   520,652 : 804,573.50 = 804,573.50 : x
2. Step 2: Convert to fraction form
   520,652/804,573.50 = 804,573.50/x
3. Step 3: Cross multiply
   520,652x = 804,573.50 × 804,573.50
4. Step 4: Simplify right side
   520,652x = 647,338,516,902.25
5. Step 5: Solve for x
   x = 647,338,516,902.25/520,652
6. Step 6: Final answer
   x = 1,243,322.83