Finding the Third Proportional to 4,921,620 and 7,705,000

Step by Step Solution

1. Step 1: Write the proportion equation
   4,921,620 : 7,705,000 = 7,705,000 : x
2. Step 2: Convert to fraction form
   4,921,620/7,705,000 = 7,705,000/x
3. Step 3: Cross multiply
   4,921,620x = 7,705,000 × 7,705,000
4. Step 4: Simplify right side
   4,921,620x = 59,367,025,000,000
5. Step 5: Solve for x
   x = 59,367,025,000,000/4,921,620
6. Step 6: Final answer
   x = 12,062,496.70