Finding the Third Proportional to 12,997,109 and 28,161,479

Step by Step Solution

1. Step 1: Write the proportion equation
   12,997,109 : 28,161,479 = 28,161,479 : x
2. Step 2: Convert to fraction form
   12,997,109/28,161,479 = 28,161,479/x
3. Step 3: Cross multiply
   12,997,109x = 28,161,479 × 28,161,479
4. Step 4: Simplify right side
   12,997,109x = 793,068,899,467,441
5. Step 5: Solve for x
   x = 793,068,899,467,441/12,997,109
6. Step 6: Final answer
   x = 61,018,869.62