Finding the Third Proportional to 8,412,278 and 18,300,780.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,412,278 : 18,300,780.50 = 18,300,780.50 : x
2. Step 2: Convert to fraction form
   8,412,278/18,300,780.50 = 18,300,780.50/x
3. Step 3: Cross multiply
   8,412,278x = 18,300,780.50 × 18,300,780.50
4. Step 4: Simplify right side
   8,412,278x = 334,918,566,909,180.25
5. Step 5: Solve for x
   x = 334,918,566,909,180.25/8,412,278
6. Step 6: Final answer
   x = 39,813,064.54