Finding the Third Proportional to 641,973.94 and 1,518,196.50

Step by Step Solution

1. Step 1: Write the proportion equation
   641,973.94 : 1,518,196.50 = 1,518,196.50 : x
2. Step 2: Convert to fraction form
   641,973.94/1,518,196.50 = 1,518,196.50/x
3. Step 3: Cross multiply
   641,973.94x = 1,518,196.50 × 1,518,196.50
4. Step 4: Simplify right side
   641,973.94x = 2,304,920,612,612.25
5. Step 5: Solve for x
   x = 2,304,920,612,612.25/641,973.94
6. Step 6: Final answer
   x = 3,590,364.78