Finding the Third Proportional to 85,969,357.50 and 188,827,621.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,969,357.50 : 188,827,621.50 = 188,827,621.50 : x
2. Step 2: Convert to fraction form
   85,969,357.50/188,827,621.50 = 188,827,621.50/x
3. Step 3: Cross multiply
   85,969,357.50x = 188,827,621.50 × 188,827,621.50
4. Step 4: Simplify right side
   85,969,357.50x = 35,655,870,641,347,264
5. Step 5: Solve for x
   x = 35,655,870,641,347,264/85,969,357.50
6. Step 6: Final answer
   x = 414,750,926.12