Finding the Third Proportional to 369,146.50 and 578,323

Step by Step Solution

1. Step 1: Write the proportion equation
   369,146.50 : 578,323 = 578,323 : x
2. Step 2: Convert to fraction form
   369,146.50/578,323 = 578,323/x
3. Step 3: Cross multiply
   369,146.50x = 578,323 × 578,323
4. Step 4: Simplify right side
   369,146.50x = 334,457,492,329
5. Step 5: Solve for x
   x = 334,457,492,329/369,146.50
6. Step 6: Final answer
   x = 906,029.16