Finding the Third Proportional to 4,680,657 and 7,426,863

Step by Step Solution

1. Step 1: Write the proportion equation
   4,680,657 : 7,426,863 = 7,426,863 : x
2. Step 2: Convert to fraction form
   4,680,657/7,426,863 = 7,426,863/x
3. Step 3: Cross multiply
   4,680,657x = 7,426,863 × 7,426,863
4. Step 4: Simplify right side
   4,680,657x = 55,158,294,020,769
5. Step 5: Solve for x
   x = 55,158,294,020,769/4,680,657
6. Step 6: Final answer
   x = 11,784,305.93