Finding the Third Proportional to 143,888 and 336,074

Step by Step Solution

1. Step 1: Write the proportion equation
   143,888 : 336,074 = 336,074 : x
2. Step 2: Convert to fraction form
   143,888/336,074 = 336,074/x
3. Step 3: Cross multiply
   143,888x = 336,074 × 336,074
4. Step 4: Simplify right side
   143,888x = 112,945,733,476
5. Step 5: Solve for x
   x = 112,945,733,476/143,888
6. Step 6: Final answer
   x = 784,955.89