Finding the Third Proportional to 392,835 and 600,667.50

Step by Step Solution

1. Step 1: Write the proportion equation
   392,835 : 600,667.50 = 600,667.50 : x
2. Step 2: Convert to fraction form
   392,835/600,667.50 = 600,667.50/x
3. Step 3: Cross multiply
   392,835x = 600,667.50 × 600,667.50
4. Step 4: Simplify right side
   392,835x = 360,801,445,556.25
5. Step 5: Solve for x
   x = 360,801,445,556.25/392,835
6. Step 6: Final answer
   x = 918,455.45