Finding the Third Proportional to 10,347,129 and 21,358,377

Step by Step Solution

1. Step 1: Write the proportion equation
   10,347,129 : 21,358,377 = 21,358,377 : x
2. Step 2: Convert to fraction form
   10,347,129/21,358,377 = 21,358,377/x
3. Step 3: Cross multiply
   10,347,129x = 21,358,377 × 21,358,377
4. Step 4: Simplify right side
   10,347,129x = 456,180,268,074,129
5. Step 5: Solve for x
   x = 456,180,268,074,129/10,347,129
6. Step 6: Final answer
   x = 44,087,617.74