Finding the Third Proportional to 13,792.78 and 29,870.65

Step by Step Solution

1. Step 1: Write the proportion equation
   13,792.78 : 29,870.65 = 29,870.65 : x
2. Step 2: Convert to fraction form
   13,792.78/29,870.65 = 29,870.65/x
3. Step 3: Cross multiply
   13,792.78x = 29,870.65 × 29,870.65
4. Step 4: Simplify right side
   13,792.78x = 892,255,638.08
5. Step 5: Solve for x
   x = 892,255,638.08/13,792.78
6. Step 6: Final answer
   x = 64,690.04