Finding the Third Proportional to 386,353 and 849,784.50

Step by Step Solution

1. Step 1: Write the proportion equation
   386,353 : 849,784.50 = 849,784.50 : x
2. Step 2: Convert to fraction form
   386,353/849,784.50 = 849,784.50/x
3. Step 3: Cross multiply
   386,353x = 849,784.50 × 849,784.50
4. Step 4: Simplify right side
   386,353x = 722,133,696,440.25
5. Step 5: Solve for x
   x = 722,133,696,440.25/386,353
6. Step 6: Final answer
   x = 1,869,103.38