Finding the Third Proportional to 121,123,188 and 265,694,160

Step by Step Solution

1. Step 1: Write the proportion equation
   121,123,188 : 265,694,160 = 265,694,160 : x
2. Step 2: Convert to fraction form
   121,123,188/265,694,160 = 265,694,160/x
3. Step 3: Cross multiply
   121,123,188x = 265,694,160 × 265,694,160
4. Step 4: Simplify right side
   121,123,188x = 70,593,386,658,105,600
5. Step 5: Solve for x
   x = 70,593,386,658,105,600/121,123,188
6. Step 6: Final answer
   x = 582,823,056.62