Finding the Third Proportional to 281,970 and 615,388.50

Step by Step Solution

1. Step 1: Write the proportion equation
   281,970 : 615,388.50 = 615,388.50 : x
2. Step 2: Convert to fraction form
   281,970/615,388.50 = 615,388.50/x
3. Step 3: Cross multiply
   281,970x = 615,388.50 × 615,388.50
4. Step 4: Simplify right side
   281,970x = 378,703,005,932.25
5. Step 5: Solve for x
   x = 378,703,005,932.25/281,970
6. Step 6: Final answer
   x = 1,343,061.34