Finding the Third Proportional to 149,310 and 322,375.50

Step by Step Solution

1. Step 1: Write the proportion equation
   149,310 : 322,375.50 = 322,375.50 : x
2. Step 2: Convert to fraction form
   149,310/322,375.50 = 322,375.50/x
3. Step 3: Cross multiply
   149,310x = 322,375.50 × 322,375.50
4. Step 4: Simplify right side
   149,310x = 103,925,963,000.25
5. Step 5: Solve for x
   x = 103,925,963,000.25/149,310
6. Step 6: Final answer
   x = 696,041.54