Finding the Third Proportional to 192,156 and 306,970.50

Step by Step Solution

1. Step 1: Write the proportion equation
   192,156 : 306,970.50 = 306,970.50 : x
2. Step 2: Convert to fraction form
   192,156/306,970.50 = 306,970.50/x
3. Step 3: Cross multiply
   192,156x = 306,970.50 × 306,970.50
4. Step 4: Simplify right side
   192,156x = 94,230,887,870.25
5. Step 5: Solve for x
   x = 94,230,887,870.25/192,156
6. Step 6: Final answer
   x = 490,387.43