Finding the Third Proportional to 12,151,680 and 28,685,184

Step by Step Solution

1. Step 1: Write the proportion equation
   12,151,680 : 28,685,184 = 28,685,184 : x
2. Step 2: Convert to fraction form
   12,151,680/28,685,184 = 28,685,184/x
3. Step 3: Cross multiply
   12,151,680x = 28,685,184 × 28,685,184
4. Step 4: Simplify right side
   12,151,680x = 822,839,781,113,856
5. Step 5: Solve for x
   x = 822,839,781,113,856/12,151,680
6. Step 6: Final answer
   x = 67,714,075.84