Finding the Third Proportional to 90,744,688 and 139,481,088

Step by Step Solution

1. Step 1: Write the proportion equation
   90,744,688 : 139,481,088 = 139,481,088 : x
2. Step 2: Convert to fraction form
   90,744,688/139,481,088 = 139,481,088/x
3. Step 3: Cross multiply
   90,744,688x = 139,481,088 × 139,481,088
4. Step 4: Simplify right side
   90,744,688x = 19,454,973,909,663,744
5. Step 5: Solve for x
   x = 19,454,973,909,663,744/90,744,688
6. Step 6: Final answer
   x = 214,392,427.13