Finding the Third Proportional to 6,621,153 and 10,256,499.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,621,153 : 10,256,499.50 = 10,256,499.50 : x
2. Step 2: Convert to fraction form
   6,621,153/10,256,499.50 = 10,256,499.50/x
3. Step 3: Cross multiply
   6,621,153x = 10,256,499.50 × 10,256,499.50
4. Step 4: Simplify right side
   6,621,153x = 105,195,781,993,500.25
5. Step 5: Solve for x
   x = 105,195,781,993,500.25/6,621,153
6. Step 6: Final answer
   x = 15,887,834.34