Finding the Third Proportional to 72,727,158,448 and 169,923,457,985

Step by Step Solution

1. Step 1: Write the proportion equation
   72,727,158,448 : 169,923,457,985 = 169,923,457,985 : x
2. Step 2: Convert to fraction form
   72,727,158,448/169,923,457,985 = 169,923,457,985/x
3. Step 3: Cross multiply
   72,727,158,448x = 169,923,457,985 × 169,923,457,985
4. Step 4: Simplify right side
   72,727,158,448x = 28,873,981,573,580,061,671,424
5. Step 5: Solve for x
   x = 28,873,981,573,580,061,671,424/72,727,158,448
6. Step 6: Final answer
   x = 397,017,870,486.79