Finding the Third Proportional to 26,986,672 and 42,920,208

Step by Step Solution

1. Step 1: Write the proportion equation
   26,986,672 : 42,920,208 = 42,920,208 : x
2. Step 2: Convert to fraction form
   26,986,672/42,920,208 = 42,920,208/x
3. Step 3: Cross multiply
   26,986,672x = 42,920,208 × 42,920,208
4. Step 4: Simplify right side
   26,986,672x = 1,842,144,254,763,264
5. Step 5: Solve for x
   x = 1,842,144,254,763,264/26,986,672
6. Step 6: Final answer
   x = 68,261,260.77