Finding the Third Proportional to 383,333.63 and 840,478.50

Step by Step Solution

1. Step 1: Write the proportion equation
   383,333.63 : 840,478.50 = 840,478.50 : x
2. Step 2: Convert to fraction form
   383,333.63/840,478.50 = 840,478.50/x
3. Step 3: Cross multiply
   383,333.63x = 840,478.50 × 840,478.50
4. Step 4: Simplify right side
   383,333.63x = 706,404,108,962.25
5. Step 5: Solve for x
   x = 706,404,108,962.25/383,333.63
6. Step 6: Final answer
   x = 1,842,791.93