Finding the Third Proportional to 531,876 and 1,138,495.50

Step by Step Solution

1. Step 1: Write the proportion equation
   531,876 : 1,138,495.50 = 1,138,495.50 : x
2. Step 2: Convert to fraction form
   531,876/1,138,495.50 = 1,138,495.50/x
3. Step 3: Cross multiply
   531,876x = 1,138,495.50 × 1,138,495.50
4. Step 4: Simplify right side
   531,876x = 1,296,172,003,520.25
5. Step 5: Solve for x
   x = 1,296,172,003,520.25/531,876
6. Step 6: Final answer
   x = 2,436,981.56