Finding the Third Proportional to 212,283 and 314,455.50

Step by Step Solution

1. Step 1: Write the proportion equation
   212,283 : 314,455.50 = 314,455.50 : x
2. Step 2: Convert to fraction form
   212,283/314,455.50 = 314,455.50/x
3. Step 3: Cross multiply
   212,283x = 314,455.50 × 314,455.50
4. Step 4: Simplify right side
   212,283x = 98,882,261,480.25
5. Step 5: Solve for x
   x = 98,882,261,480.25/212,283
6. Step 6: Final answer
   x = 465,803.96