Finding the Third Proportional to 152,965 and 328,072.50

Step by Step Solution

1. Step 1: Write the proportion equation
   152,965 : 328,072.50 = 328,072.50 : x
2. Step 2: Convert to fraction form
   152,965/328,072.50 = 328,072.50/x
3. Step 3: Cross multiply
   152,965x = 328,072.50 × 328,072.50
4. Step 4: Simplify right side
   152,965x = 107,631,565,256.25
5. Step 5: Solve for x
   x = 107,631,565,256.25/152,965
6. Step 6: Final answer
   x = 703,635.25