Finding the Third Proportional to 7,499,985 and 10,619,392.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,499,985 : 10,619,392.50 = 10,619,392.50 : x
2. Step 2: Convert to fraction form
   7,499,985/10,619,392.50 = 10,619,392.50/x
3. Step 3: Cross multiply
   7,499,985x = 10,619,392.50 × 10,619,392.50
4. Step 4: Simplify right side
   7,499,985x = 112,771,497,069,056.25
5. Step 5: Solve for x
   x = 112,771,497,069,056.25/7,499,985
6. Step 6: Final answer
   x = 15,036,229.68