Finding the Third Proportional to 152,931 and 330,469.50

Step by Step Solution

1. Step 1: Write the proportion equation
   152,931 : 330,469.50 = 330,469.50 : x
2. Step 2: Convert to fraction form
   152,931/330,469.50 = 330,469.50/x
3. Step 3: Cross multiply
   152,931x = 330,469.50 × 330,469.50
4. Step 4: Simplify right side
   152,931x = 109,210,090,430.25
5. Step 5: Solve for x
   x = 109,210,090,430.25/152,931
6. Step 6: Final answer
   x = 714,113.49