Finding the Third Proportional to 27,972,194 and 42,215,315

Step by Step Solution

1. Step 1: Write the proportion equation
   27,972,194 : 42,215,315 = 42,215,315 : x
2. Step 2: Convert to fraction form
   27,972,194/42,215,315 = 42,215,315/x
3. Step 3: Cross multiply
   27,972,194x = 42,215,315 × 42,215,315
4. Step 4: Simplify right side
   27,972,194x = 1,782,132,820,549,225
5. Step 5: Solve for x
   x = 1,782,132,820,549,225/27,972,194
6. Step 6: Final answer
   x = 63,710,870.18