Finding the Third Proportional to 12,151,694 and 28,685,219

Step by Step Solution

1. Step 1: Write the proportion equation
   12,151,694 : 28,685,219 = 28,685,219 : x
2. Step 2: Convert to fraction form
   12,151,694/28,685,219 = 28,685,219/x
3. Step 3: Cross multiply
   12,151,694x = 28,685,219 × 28,685,219
4. Step 4: Simplify right side
   12,151,694x = 822,841,789,077,961
5. Step 5: Solve for x
   x = 822,841,789,077,961/12,151,694
6. Step 6: Final answer
   x = 67,714,163.07