Finding the Third Proportional to 275,376 and 387,796.50

Step by Step Solution

1. Step 1: Write the proportion equation
   275,376 : 387,796.50 = 387,796.50 : x
2. Step 2: Convert to fraction form
   275,376/387,796.50 = 387,796.50/x
3. Step 3: Cross multiply
   275,376x = 387,796.50 × 387,796.50
4. Step 4: Simplify right side
   275,376x = 150,386,125,412.25
5. Step 5: Solve for x
   x = 150,386,125,412.25/275,376
6. Step 6: Final answer
   x = 546,111.95