Finding the Third Proportional to 210,156 and 456,034

Step by Step Solution

1. Step 1: Write the proportion equation
   210,156 : 456,034 = 456,034 : x
2. Step 2: Convert to fraction form
   210,156/456,034 = 456,034/x
3. Step 3: Cross multiply
   210,156x = 456,034 × 456,034
4. Step 4: Simplify right side
   210,156x = 207,967,009,156
5. Step 5: Solve for x
   x = 207,967,009,156/210,156
6. Step 6: Final answer
   x = 989,583.97