Finding the Third Proportional to 152,965 and 328,072

Step by Step Solution

1. Step 1: Write the proportion equation
   152,965 : 328,072 = 328,072 : x
2. Step 2: Convert to fraction form
   152,965/328,072 = 328,072/x
3. Step 3: Cross multiply
   152,965x = 328,072 × 328,072
4. Step 4: Simplify right side
   152,965x = 107,631,237,184
5. Step 5: Solve for x
   x = 107,631,237,184/152,965
6. Step 6: Final answer
   x = 703,633.10