Finding the Third Proportional to 184,248 and 390,639.75

Step by Step Solution

1. Step 1: Write the proportion equation
   184,248 : 390,639.75 = 390,639.75 : x
2. Step 2: Convert to fraction form
   184,248/390,639.75 = 390,639.75/x
3. Step 3: Cross multiply
   184,248x = 390,639.75 × 390,639.75
4. Step 4: Simplify right side
   184,248x = 152,599,414,280.06
5. Step 5: Solve for x
   x = 152,599,414,280.06/184,248
6. Step 6: Final answer
   x = 828,228.34