Finding the Third Proportional to 2,909,805 and 5,902,579.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,909,805 : 5,902,579.50 = 5,902,579.50 : x
2. Step 2: Convert to fraction form
   2,909,805/5,902,579.50 = 5,902,579.50/x
3. Step 3: Cross multiply
   2,909,805x = 5,902,579.50 × 5,902,579.50
4. Step 4: Simplify right side
   2,909,805x = 34,840,444,753,820.25
5. Step 5: Solve for x
   x = 34,840,444,753,820.25/2,909,805
6. Step 6: Final answer
   x = 11,973,463.77