Finding the Third Proportional to 202,164,144 and 288,897,238.50

Step by Step Solution

1. Step 1: Write the proportion equation
   202,164,144 : 288,897,238.50 = 288,897,238.50 : x
2. Step 2: Convert to fraction form
   202,164,144/288,897,238.50 = 288,897,238.50/x
3. Step 3: Cross multiply
   202,164,144x = 288,897,238.50 × 288,897,238.50
4. Step 4: Simplify right side
   202,164,144x = 83,461,614,412,925,888
5. Step 5: Solve for x
   x = 83,461,614,412,925,888/202,164,144
6. Step 6: Final answer
   x = 412,840,836.96