Finding the Third Proportional to 60,415,390 and 89,490,573

Step by Step Solution

1. Step 1: Write the proportion equation
   60,415,390 : 89,490,573 = 89,490,573 : x
2. Step 2: Convert to fraction form
   60,415,390/89,490,573 = 89,490,573/x
3. Step 3: Cross multiply
   60,415,390x = 89,490,573 × 89,490,573
4. Step 4: Simplify right side
   60,415,390x = 8,008,562,655,868,329
5. Step 5: Solve for x
   x = 8,008,562,655,868,329/60,415,390
6. Step 6: Final answer
   x = 132,558,320.92