Finding the Third Proportional to 7,670,716 and 12,783,008

Step by Step Solution

1. Step 1: Write the proportion equation
   7,670,716 : 12,783,008 = 12,783,008 : x
2. Step 2: Convert to fraction form
   7,670,716/12,783,008 = 12,783,008/x
3. Step 3: Cross multiply
   7,670,716x = 12,783,008 × 12,783,008
4. Step 4: Simplify right side
   7,670,716x = 163,405,293,528,064
5. Step 5: Solve for x
   x = 163,405,293,528,064/7,670,716
6. Step 6: Final answer
   x = 21,302,482.52