Finding the Third Proportional to 210,152 and 314,484

Step by Step Solution

1. Step 1: Write the proportion equation
   210,152 : 314,484 = 314,484 : x
2. Step 2: Convert to fraction form
   210,152/314,484 = 314,484/x
3. Step 3: Cross multiply
   210,152x = 314,484 × 314,484
4. Step 4: Simplify right side
   210,152x = 98,900,186,256
5. Step 5: Solve for x
   x = 98,900,186,256/210,152
6. Step 6: Final answer
   x = 470,612.63