Finding the Third Proportional to 485,769 and 735,430.50

Step by Step Solution

1. Step 1: Write the proportion equation
   485,769 : 735,430.50 = 735,430.50 : x
2. Step 2: Convert to fraction form
   485,769/735,430.50 = 735,430.50/x
3. Step 3: Cross multiply
   485,769x = 735,430.50 × 735,430.50
4. Step 4: Simplify right side
   485,769x = 540,858,020,330.25
5. Step 5: Solve for x
   x = 540,858,020,330.25/485,769
6. Step 6: Final answer
   x = 1,113,405.80