Finding the Third Proportional to 389,113 and 600,931.50

Step by Step Solution

1. Step 1: Write the proportion equation
   389,113 : 600,931.50 = 600,931.50 : x
2. Step 2: Convert to fraction form
   389,113/600,931.50 = 600,931.50/x
3. Step 3: Cross multiply
   389,113x = 600,931.50 × 600,931.50
4. Step 4: Simplify right side
   389,113x = 361,118,667,692.25
5. Step 5: Solve for x
   x = 361,118,667,692.25/389,113
6. Step 6: Final answer
   x = 928,056.03