Finding the Third Proportional to 243,003 and 529,867.50

Step by Step Solution

1. Step 1: Write the proportion equation
   243,003 : 529,867.50 = 529,867.50 : x
2. Step 2: Convert to fraction form
   243,003/529,867.50 = 529,867.50/x
3. Step 3: Cross multiply
   243,003x = 529,867.50 × 529,867.50
4. Step 4: Simplify right side
   243,003x = 280,759,567,556.25
5. Step 5: Solve for x
   x = 280,759,567,556.25/243,003
6. Step 6: Final answer
   x = 1,155,374.90