Finding the Third Proportional to 211,095 and 315,589.50

Step by Step Solution

1. Step 1: Write the proportion equation
   211,095 : 315,589.50 = 315,589.50 : x
2. Step 2: Convert to fraction form
   211,095/315,589.50 = 315,589.50/x
3. Step 3: Cross multiply
   211,095x = 315,589.50 × 315,589.50
4. Step 4: Simplify right side
   211,095x = 99,596,732,510.25
5. Step 5: Solve for x
   x = 99,596,732,510.25/211,095
6. Step 6: Final answer
   x = 471,810.00