Finding the Third Proportional to 198,312 and 302,113.50

Step by Step Solution

1. Step 1: Write the proportion equation
   198,312 : 302,113.50 = 302,113.50 : x
2. Step 2: Convert to fraction form
   198,312/302,113.50 = 302,113.50/x
3. Step 3: Cross multiply
   198,312x = 302,113.50 × 302,113.50
4. Step 4: Simplify right side
   198,312x = 91,272,566,882.25
5. Step 5: Solve for x
   x = 91,272,566,882.25/198,312
6. Step 6: Final answer
   x = 460,247.32