Finding the Third Proportional to 72,558,521 and 157,871,140

Step by Step Solution

1. Step 1: Write the proportion equation
   72,558,521 : 157,871,140 = 157,871,140 : x
2. Step 2: Convert to fraction form
   72,558,521/157,871,140 = 157,871,140/x
3. Step 3: Cross multiply
   72,558,521x = 157,871,140 × 157,871,140
4. Step 4: Simplify right side
   72,558,521x = 24,923,296,844,899,600
5. Step 5: Solve for x
   x = 24,923,296,844,899,600/72,558,521
6. Step 6: Final answer
   x = 343,492,349.37