Finding the Third Proportional to 6,478,738 and 14,174,156

Step by Step Solution

1. Step 1: Write the proportion equation
   6,478,738 : 14,174,156 = 14,174,156 : x
2. Step 2: Convert to fraction form
   6,478,738/14,174,156 = 14,174,156/x
3. Step 3: Cross multiply
   6,478,738x = 14,174,156 × 14,174,156
4. Step 4: Simplify right side
   6,478,738x = 200,906,698,312,336
5. Step 5: Solve for x
   x = 200,906,698,312,336/6,478,738
6. Step 6: Final answer
   x = 31,010,159.43