Finding the Third Proportional to 12,926,385 and 19,658,173.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,926,385 : 19,658,173.50 = 19,658,173.50 : x
2. Step 2: Convert to fraction form
   12,926,385/19,658,173.50 = 19,658,173.50/x
3. Step 3: Cross multiply
   12,926,385x = 19,658,173.50 × 19,658,173.50
4. Step 4: Simplify right side
   12,926,385x = 386,443,785,356,102.25
5. Step 5: Solve for x
   x = 386,443,785,356,102.25/12,926,385
6. Step 6: Final answer
   x = 29,895,735.38