Finding the Third Proportional to 149,730 and 328,444.50

Step by Step Solution

1. Step 1: Write the proportion equation
   149,730 : 328,444.50 = 328,444.50 : x
2. Step 2: Convert to fraction form
   149,730/328,444.50 = 328,444.50/x
3. Step 3: Cross multiply
   149,730x = 328,444.50 × 328,444.50
4. Step 4: Simplify right side
   149,730x = 107,875,789,580.25
5. Step 5: Solve for x
   x = 107,875,789,580.25/149,730
6. Step 6: Final answer
   x = 720,468.77