Finding the Third Proportional to 410,112 and 615,156.75

Step by Step Solution

1. Step 1: Write the proportion equation
   410,112 : 615,156.75 = 615,156.75 : x
2. Step 2: Convert to fraction form
   410,112/615,156.75 = 615,156.75/x
3. Step 3: Cross multiply
   410,112x = 615,156.75 × 615,156.75
4. Step 4: Simplify right side
   410,112x = 378,417,827,070.56
5. Step 5: Solve for x
   x = 378,417,827,070.56/410,112
6. Step 6: Final answer
   x = 922,718.25