Finding the Third Proportional to 215,970 and 243,034

Step by Step Solution

1. Step 1: Write the proportion equation
   215,970 : 243,034 = 243,034 : x
2. Step 2: Convert to fraction form
   215,970/243,034 = 243,034/x
3. Step 3: Cross multiply
   215,970x = 243,034 × 243,034
4. Step 4: Simplify right side
   215,970x = 59,065,525,156
5. Step 5: Solve for x
   x = 59,065,525,156/215,970
6. Step 6: Final answer
   x = 273,489.49