Finding the Third Proportional to 211,320 and 498,345.75

Step by Step Solution

1. Step 1: Write the proportion equation
   211,320 : 498,345.75 = 498,345.75 : x
2. Step 2: Convert to fraction form
   211,320/498,345.75 = 498,345.75/x
3. Step 3: Cross multiply
   211,320x = 498,345.75 × 498,345.75
4. Step 4: Simplify right side
   211,320x = 248,348,486,543.06
5. Step 5: Solve for x
   x = 248,348,486,543.06/211,320
6. Step 6: Final answer
   x = 1,175,224.71