Finding the Third Proportional to 83,384,972 and 129,269,931

Step by Step Solution

1. Step 1: Write the proportion equation
   83,384,972 : 129,269,931 = 129,269,931 : x
2. Step 2: Convert to fraction form
   83,384,972/129,269,931 = 129,269,931/x
3. Step 3: Cross multiply
   83,384,972x = 129,269,931 × 129,269,931
4. Step 4: Simplify right side
   83,384,972x = 16,710,715,060,744,760
5. Step 5: Solve for x
   x = 16,710,715,060,744,760/83,384,972
6. Step 6: Final answer
   x = 200,404,397.34