Finding the Third Proportional to 196,698,726 and 428,995,327.50

Step by Step Solution

1. Step 1: Write the proportion equation
   196,698,726 : 428,995,327.50 = 428,995,327.50 : x
2. Step 2: Convert to fraction form
   196,698,726/428,995,327.50 = 428,995,327.50/x
3. Step 3: Cross multiply
   196,698,726x = 428,995,327.50 × 428,995,327.50
4. Step 4: Simplify right side
   196,698,726x = 184,036,991,016,832,256
5. Step 5: Solve for x
   x = 184,036,991,016,832,256/196,698,726
6. Step 6: Final answer
   x = 935,628,790.08