Finding the Third Proportional to 63,897,808.50 and 139,958,563.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,897,808.50 : 139,958,563.50 = 139,958,563.50 : x
2. Step 2: Convert to fraction form
   63,897,808.50/139,958,563.50 = 139,958,563.50/x
3. Step 3: Cross multiply
   63,897,808.50x = 139,958,563.50 × 139,958,563.50
4. Step 4: Simplify right side
   63,897,808.50x = 19,588,399,496,983,532
5. Step 5: Solve for x
   x = 19,588,399,496,983,532/63,897,808.50
6. Step 6: Final answer
   x = 306,558,236.61