Finding the Third Proportional to 137,871,358 and 298,720,426

Step by Step Solution

1. Step 1: Write the proportion equation
   137,871,358 : 298,720,426 = 298,720,426 : x
2. Step 2: Convert to fraction form
   137,871,358/298,720,426 = 298,720,426/x
3. Step 3: Cross multiply
   137,871,358x = 298,720,426 × 298,720,426
4. Step 4: Simplify right side
   137,871,358x = 89,233,892,909,621,472
5. Step 5: Solve for x
   x = 89,233,892,909,621,472/137,871,358
6. Step 6: Final answer
   x = 647,225,748.73