Finding the Third Proportional to 68,429,326.50 and 141,709,144.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,429,326.50 : 141,709,144.50 = 141,709,144.50 : x
2. Step 2: Convert to fraction form
   68,429,326.50/141,709,144.50 = 141,709,144.50/x
3. Step 3: Cross multiply
   68,429,326.50x = 141,709,144.50 × 141,709,144.50
4. Step 4: Simplify right side
   68,429,326.50x = 20,081,481,634,921,880
5. Step 5: Solve for x
   x = 20,081,481,634,921,880/68,429,326.50
6. Step 6: Final answer
   x = 293,463,090.49