Finding the Third Proportional to 316,156 and 482,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   316,156 : 482,111.50 = 482,111.50 : x
2. Step 2: Convert to fraction form
   316,156/482,111.50 = 482,111.50/x
3. Step 3: Cross multiply
   316,156x = 482,111.50 × 482,111.50
4. Step 4: Simplify right side
   316,156x = 232,431,498,432.25
5. Step 5: Solve for x
   x = 232,431,498,432.25/316,156
6. Step 6: Final answer
   x = 735,179.78