Finding the Third Proportional to 490,116 and 749,590.50

Step by Step Solution

1. Step 1: Write the proportion equation
   490,116 : 749,590.50 = 749,590.50 : x
2. Step 2: Convert to fraction form
   490,116/749,590.50 = 749,590.50/x
3. Step 3: Cross multiply
   490,116x = 749,590.50 × 749,590.50
4. Step 4: Simplify right side
   490,116x = 561,885,917,690.25
5. Step 5: Solve for x
   x = 561,885,917,690.25/490,116
6. Step 6: Final answer
   x = 1,146,434.55