Finding the Third Proportional to 3,939,748 and 8,626,835

Step by Step Solution

1. Step 1: Write the proportion equation
   3,939,748 : 8,626,835 = 8,626,835 : x
2. Step 2: Convert to fraction form
   3,939,748/8,626,835 = 8,626,835/x
3. Step 3: Cross multiply
   3,939,748x = 8,626,835 × 8,626,835
4. Step 4: Simplify right side
   3,939,748x = 74,422,282,117,225
5. Step 5: Solve for x
   x = 74,422,282,117,225/3,939,748
6. Step 6: Final answer
   x = 18,890,112.29