Finding the Third Proportional to 4,886,811 and 7,456,612.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,886,811 : 7,456,612.50 = 7,456,612.50 : x
2. Step 2: Convert to fraction form
   4,886,811/7,456,612.50 = 7,456,612.50/x
3. Step 3: Cross multiply
   4,886,811x = 7,456,612.50 × 7,456,612.50
4. Step 4: Simplify right side
   4,886,811x = 55,601,069,975,156.25
5. Step 5: Solve for x
   x = 55,601,069,975,156.25/4,886,811
6. Step 6: Final answer
   x = 11,377,781.95