Finding the Third Proportional to 5,705,142 and 12,685,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,705,142 : 12,685,870.50 = 12,685,870.50 : x
2. Step 2: Convert to fraction form
   5,705,142/12,685,870.50 = 12,685,870.50/x
3. Step 3: Cross multiply
   5,705,142x = 12,685,870.50 × 12,685,870.50
4. Step 4: Simplify right side
   5,705,142x = 160,931,310,342,770.25
5. Step 5: Solve for x
   x = 160,931,310,342,770.25/5,705,142
6. Step 6: Final answer
   x = 28,208,116.53