Finding the Third Proportional to 65,228,434.50 and 139,794,097.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,228,434.50 : 139,794,097.50 = 139,794,097.50 : x
2. Step 2: Convert to fraction form
   65,228,434.50/139,794,097.50 = 139,794,097.50/x
3. Step 3: Cross multiply
   65,228,434.50x = 139,794,097.50 × 139,794,097.50
4. Step 4: Simplify right side
   65,228,434.50x = 19,542,389,695,839,508
5. Step 5: Solve for x
   x = 19,542,389,695,839,508/65,228,434.50
6. Step 6: Final answer
   x = 299,599,244.50