Finding the Third Proportional to 243,141.75 and 530,145

Step by Step Solution

1. Step 1: Write the proportion equation
   243,141.75 : 530,145 = 530,145 : x
2. Step 2: Convert to fraction form
   243,141.75/530,145 = 530,145/x
3. Step 3: Cross multiply
   243,141.75x = 530,145 × 530,145
4. Step 4: Simplify right side
   243,141.75x = 281,053,721,025
5. Step 5: Solve for x
   x = 281,053,721,025/243,141.75
6. Step 6: Final answer
   x = 1,155,925.39