Finding the Third Proportional to 520,423 and 1,109,553.50

Step by Step Solution

1. Step 1: Write the proportion equation
   520,423 : 1,109,553.50 = 1,109,553.50 : x
2. Step 2: Convert to fraction form
   520,423/1,109,553.50 = 1,109,553.50/x
3. Step 3: Cross multiply
   520,423x = 1,109,553.50 × 1,109,553.50
4. Step 4: Simplify right side
   520,423x = 1,231,108,969,362.25
5. Step 5: Solve for x
   x = 1,231,108,969,362.25/520,423
6. Step 6: Final answer
   x = 2,365,592.93