Finding the Third Proportional to 6,490,143 and 13,848,972

Step by Step Solution

1. Step 1: Write the proportion equation
   6,490,143 : 13,848,972 = 13,848,972 : x
2. Step 2: Convert to fraction form
   6,490,143/13,848,972 = 13,848,972/x
3. Step 3: Cross multiply
   6,490,143x = 13,848,972 × 13,848,972
4. Step 4: Simplify right side
   6,490,143x = 191,794,025,456,784
5. Step 5: Solve for x
   x = 191,794,025,456,784/6,490,143
6. Step 6: Final answer
   x = 29,551,586.99