Finding the Third Proportional to 510,402.50 and 1,118,490.50

Step by Step Solution

1. Step 1: Write the proportion equation
   510,402.50 : 1,118,490.50 = 1,118,490.50 : x
2. Step 2: Convert to fraction form
   510,402.50/1,118,490.50 = 1,118,490.50/x
3. Step 3: Cross multiply
   510,402.50x = 1,118,490.50 × 1,118,490.50
4. Step 4: Simplify right side
   510,402.50x = 1,251,020,998,590.25
5. Step 5: Solve for x
   x = 1,251,020,998,590.25/510,402.50
6. Step 6: Final answer
   x = 2,451,047.94