Finding the Third Proportional to 490,425 and 749,893.50

Step by Step Solution

1. Step 1: Write the proportion equation
   490,425 : 749,893.50 = 749,893.50 : x
2. Step 2: Convert to fraction form
   490,425/749,893.50 = 749,893.50/x
3. Step 3: Cross multiply
   490,425x = 749,893.50 × 749,893.50
4. Step 4: Simplify right side
   490,425x = 562,340,261,342.25
5. Step 5: Solve for x
   x = 562,340,261,342.25/490,425
6. Step 6: Final answer
   x = 1,146,638.65