Finding the Third Proportional to 520,425 and 804,271.50

Step by Step Solution

1. Step 1: Write the proportion equation
   520,425 : 804,271.50 = 804,271.50 : x
2. Step 2: Convert to fraction form
   520,425/804,271.50 = 804,271.50/x
3. Step 3: Cross multiply
   520,425x = 804,271.50 × 804,271.50
4. Step 4: Simplify right side
   520,425x = 646,852,645,712.25
5. Step 5: Solve for x
   x = 646,852,645,712.25/520,425
6. Step 6: Final answer
   x = 1,242,931.54