Finding the Third Proportional to 12,020,056.50 and 28,345,980

Step by Step Solution

1. Step 1: Write the proportion equation
   12,020,056.50 : 28,345,980 = 28,345,980 : x
2. Step 2: Convert to fraction form
   12,020,056.50/28,345,980 = 28,345,980/x
3. Step 3: Cross multiply
   12,020,056.50x = 28,345,980 × 28,345,980
4. Step 4: Simplify right side
   12,020,056.50x = 803,494,582,160,400
5. Step 5: Solve for x
   x = 803,494,582,160,400/12,020,056.50
6. Step 6: Final answer
   x = 66,846,156.85