Finding the Third Proportional to 58,164,578 and 90,063,892

Step by Step Solution

1. Step 1: Write the proportion equation
   58,164,578 : 90,063,892 = 90,063,892 : x
2. Step 2: Convert to fraction form
   58,164,578/90,063,892 = 90,063,892/x
3. Step 3: Cross multiply
   58,164,578x = 90,063,892 × 90,063,892
4. Step 4: Simplify right side
   58,164,578x = 8,111,504,642,187,664
5. Step 5: Solve for x
   x = 8,111,504,642,187,664/58,164,578
6. Step 6: Final answer
   x = 139,457,809.57