Finding the Third Proportional to 210,118.50 and 314,435.25

Step by Step Solution

1. Step 1: Write the proportion equation
   210,118.50 : 314,435.25 = 314,435.25 : x
2. Step 2: Convert to fraction form
   210,118.50/314,435.25 = 314,435.25/x
3. Step 3: Cross multiply
   210,118.50x = 314,435.25 × 314,435.25
4. Step 4: Simplify right side
   210,118.50x = 98,869,526,442.56
5. Step 5: Solve for x
   x = 98,869,526,442.56/210,118.50
6. Step 6: Final answer
   x = 470,541.75