Finding the Third Proportional to 12,900 and 30,297

Step by Step Solution

1. Step 1: Write the proportion equation
   12,900 : 30,297 = 30,297 : x
2. Step 2: Convert to fraction form
   12,900/30,297 = 30,297/x
3. Step 3: Cross multiply
   12,900x = 30,297 × 30,297
4. Step 4: Simplify right side
   12,900x = 917,908,209
5. Step 5: Solve for x
   x = 917,908,209/12,900
6. Step 6: Final answer
   x = 71,155.68