Finding the Third Proportional to 31,157,194 and 72,123,263

Step by Step Solution

1. Step 1: Write the proportion equation
   31,157,194 : 72,123,263 = 72,123,263 : x
2. Step 2: Convert to fraction form
   31,157,194/72,123,263 = 72,123,263/x
3. Step 3: Cross multiply
   31,157,194x = 72,123,263 × 72,123,263
4. Step 4: Simplify right side
   31,157,194x = 5,201,765,065,767,169
5. Step 5: Solve for x
   x = 5,201,765,065,767,169/31,157,194
6. Step 6: Final answer
   x = 166,952,295.70